You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I assist you at this moment?

USER: I am John White. Can you please help me in booking my flight ticket from DCA to SFO?

ASSISTANT: Sure John White, I am ready to help you with that. Can I have your travel dates please?

USER: My trip dates are 06/29 and 07/01.

ASSISTANT: Ok, please wait a moment to check flight availabilaity.

USER: Ok, sure.

ASSISTANT: I have found a flight in Frontier airlines which is having connection 1 and the ticket fare is 200. Is it ok for you?

USER: Proceed for booking.

ASSISTANT: Ok John White, your ticket has booked and the flight number is 1016.

USER: Thank you.

ASSISTANT: Thank you for choosing us, have a great journey.