Teacher:In this task, you're given a dialogue between a customer and a flight booking agent with a gap in the conversation. Your job is to find the answer of the previous dialogue. Avoid using irrelevant extra information while creating the answer. The answer should be relevant to the question before the blank. If you fill the blank with a question, it should have an answer from the agent in the given dialogue. Fill the gap marked with underline.
Teacher: Now, understand the problem? Solve this instance: customer: Hello. 
 agent: Hello. How may I help you? 
 customer: I am Christopher Thomas, want to travel from EWR to SFO. Please help me in booking my ticket. 
 agent: May I know your travel dates? 
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 agent: There is a flight with flight number 1005 with price is 100, can I proceed? 
 customer: Yes, please proceed with the booking. 
 agent: Your booking is done. 
 customer: Thank you. 
 agent: Most welcome.
Student:
customer: Sure, my travelling dates are from 07/28 to 07/30.