and no you cannot customize an itinerary unless you book several different legs of a cruise with stops in between on shore.. say book a Panamal Canal crossing, then fly to Asia and pick it up again and sail to India then fly to Europe to sail the Med before flying to England to hit the Transatlantic corssing.
1	and	and	CCONJ	CC	_	6	cc	6:cc	_
2	no	no	INTJ	UH	_	6	discourse	6:discourse	_
3	you	you	PRON	PRP	Case=Nom|Person=2|PronType=Prs	6	nsubj	6:nsubj	_
4-5	cannot	_	_	_	_	_	_	_	_
4	can	can	AUX	MD	VerbForm=Fin	6	aux	6:aux	_
5	not	not	PART	RB	_	6	advmod	6:advmod	_
6	customize	customize	VERB	VB	VerbForm=Inf	0	root	0:root	_
7	an	a	DET	DT	Definite=Ind|PronType=Art	8	det	8:det	_
8	itinerary	itinerary	NOUN	NN	Number=Sing	6	obj	6:obj	_
9	unless	unless	SCONJ	IN	_	11	mark	11:mark	_
10	you	you	PRON	PRP	Case=Nom|Person=2|PronType=Prs	11	nsubj	11:nsubj	_
11	book	book	VERB	VBP	Mood=Ind|Number=Sing|Person=2|Tense=Pres|VerbForm=Fin	6	advcl	6:advcl:unless	_
12	several	several	ADJ	JJ	Degree=Pos	14	amod	14:amod	_
13	different	different	ADJ	JJ	Degree=Pos	14	amod	14:amod	_
14	legs	leg	NOUN	NNS	Number=Plur	11	obj	11:obj	_
15	of	of	ADP	IN	_	17	case	17:case	_
16	a	a	DET	DT	Definite=Ind|PronType=Art	17	det	17:det	_
17	cruise	cruise	NOUN	NN	Number=Sing	14	nmod	14:nmod:of	_
18	with	with	ADP	IN	_	19	case	19:case	_
19	stops	stop	NOUN	NNS	Number=Plur	17	nmod	17:nmod:with	_
20	in	in	ADP	IN	_	19	advmod	19:advmod	_
21	between	between	ADP	IN	_	20	fixed	20:fixed	_
22	on	on	ADP	IN	_	23	case	23:case	_
23	shore	shore	NOUN	NN	Number=Sing	19	nmod	19:nmod:on	SpaceAfter=No
24	..	..	PUNCT	.	_	6	punct	6:punct	_
25	say	say	INTJ	UH	_	26	discourse	26:discourse	_
26	book	book	VERB	VB	VerbForm=Inf	6	parataxis	6:parataxis	_
27	a	a	DET	DT	Definite=Ind|PronType=Art	30	det	30:det	_
28	Panamal	Panama	PROPN	NNP	Number=Sing|Typo=Yes	29	compound	29:compound	CorrectForm=Panama
29	Canal	Canal	PROPN	NNP	Number=Sing	30	compound	30:compound	_
30	crossing	crossing	NOUN	NN	Number=Sing	26	obj	26:obj	SpaceAfter=No
31	,	,	PUNCT	,	_	26	punct	26:punct	_
32	then	then	ADV	RB	PronType=Dem	33	advmod	33:advmod	_
33	fly	fly	VERB	VB	VerbForm=Inf	26	parataxis	26:parataxis	_
34	to	to	ADP	IN	_	35	case	35:case	_
35	Asia	Asia	PROPN	NNP	Number=Sing	33	obl	33:obl:to	_
36	and	and	CCONJ	CC	_	37	cc	37:cc	_
37	pick	pick	VERB	VB	VerbForm=Inf	33	conj	33:conj:and	_
38	it	it	PRON	PRP	Case=Acc|Gender=Neut|Number=Sing|Person=3|PronType=Prs	37	obj	37:obj	_
39	up	up	ADP	RP	_	37	compound:prt	37:compound:prt	_
40	again	again	ADV	RB	_	37	advmod	37:advmod	_
41	and	and	CCONJ	CC	_	42	cc	42:cc	_
42	sail	sail	VERB	VB	VerbForm=Inf	33	conj	33:conj:and	_
43	to	to	ADP	IN	_	44	case	44:case	_
44	India	India	PROPN	NNP	Number=Sing	42	obl	42:obl:to	_
45	then	then	ADV	RB	PronType=Dem	46	advmod	46:advmod	_
46	fly	fly	VERB	VB	VerbForm=Inf	26	parataxis	26:parataxis	_
47	to	to	ADP	IN	_	48	case	48:case	_
48	Europe	Europe	PROPN	NNP	Number=Sing	46	obl	46:obl:to	_
49	to	to	PART	TO	_	50	mark	50:mark	_
50	sail	sail	VERB	VB	VerbForm=Inf	46	advcl	46:advcl:to	_
51	the	the	DET	DT	Definite=Def|PronType=Art	52	det	52:det	_
52	Med	Med	PROPN	NNP	Number=Sing	50	obj	50:obj	_
53	before	before	SCONJ	IN	_	54	mark	54:mark	_
54	flying	fly	VERB	VBG	VerbForm=Ger	46	advcl	46:advcl:before	_
55	to	to	ADP	IN	_	56	case	56:case	_
56	England	England	PROPN	NNP	Number=Sing	54	obl	54:obl:to	_
57	to	to	PART	TO	_	58	mark	58:mark	_
58	hit	hit	VERB	VB	VerbForm=Inf	54	advcl	54:advcl:to	_
59	the	the	DET	DT	Definite=Def|PronType=Art	61	det	61:det	_
60	Transatlantic	transatlantic	ADJ	JJ	Degree=Pos	61	amod	61:amod	_
61	corssing	crossing	NOUN	NN	Number=Sing|Typo=Yes	58	obj	58:obj	CorrectForm=crossing|SpaceAfter=No
62	.	.	PUNCT	.	_	6	punct	6:punct	_
