You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: Gregory Phillips this side, help me to book a flight from BOS to SFO.

ASSISTANT: Sure, may I know your travel dates please?

USER: I am looking to start on 08/01 and return on 08/03.

ASSISTANT: Ok, hold on for a moment. Let me check.

USER: Ok, see for the price under 500.

ASSISTANT: I found a flight for you with UA airline and it costs you 100. Shall I proceed?

USER: Please book it.

ASSISTANT: Your ticket has been booked with 1006 flight number.

USER: Thank you for booking.

ASSISTANT: You are welcome.