You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: I am Christopher Thomas, want to travel from EWR to SFO. Please help me in booking my ticket.

ASSISTANT: May I know your travel dates?

USER: Sure, my travelling dates are from 07/28 to 07/30.

ASSISTANT: There is a flight with flight number 1005 with price is 100, can I proceed?

USER: Yes, please proceed with the booking.

ASSISTANT: Your booking is done.

USER: Thank you.

ASSISTANT: Most welcome.