If yes, you don't need to change it because you board later.
1	If	if	SCONJ	IN	_	2	mark	2:mark	_
2	yes	yes	INTJ	UH	_	7	advcl	7:advcl:if	SpaceAfter=No
3	,	,	PUNCT	,	_	7	punct	7:punct	_
4	you	you	PRON	PRP	Case=Nom|Person=2|PronType=Prs	7	nsubj	7:nsubj|9:nsubj:xsubj	_
5-6	don't	_	_	_	_	_	_	_	_
5	do	do	AUX	VBP	Mood=Ind|Number=Sing|Person=2|Tense=Pres|VerbForm=Fin	7	aux	7:aux	_
6	n't	not	PART	RB	_	7	advmod	7:advmod	_
7	need	need	VERB	VB	VerbForm=Inf	0	root	0:root	_
8	to	to	PART	TO	_	9	mark	9:mark	_
9	change	change	VERB	VB	VerbForm=Inf	7	xcomp	7:xcomp	_
10	it	it	PRON	PRP	Case=Nom|Gender=Neut|Number=Sing|Person=3|PronType=Prs	9	obj	9:obj	_
11	because	because	SCONJ	IN	_	13	mark	13:mark	_
12	you	you	PRON	PRP	Case=Nom|Person=2|PronType=Prs	13	nsubj	13:nsubj	_
13	board	board	VERB	VBP	Mood=Ind|Number=Sing|Person=2|Tense=Pres|VerbForm=Fin	7	advcl	7:advcl:because	_
14	later	late	ADV	RBR	Degree=Cmp	13	advmod	13:advmod	SpaceAfter=No
15	.	.	PUNCT	.	_	7	punct	7:punct	_
