You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Scott Scott here.

ASSISTANT: Scott, how may I help you?

USER: I am a politician, I have to meet Donald Trump at Washington DC. Please book my ticket from Oakland.

ASSISTANT: Scott, when you are willing to travel?

USER: I will leave on 06/22 and return on 06/24.

ASSISTANT: Scott, please share me your nearest airport codes?

USER: My airport codes are OAK and IAD.

ASSISTANT: Sure, please wait for a while.

USER: Ok.

ASSISTANT: There is a flight with Delta airlines and the ticket fare is 100 only. Shall I proceed for booking?

USER: Please book my ticket.

ASSISTANT: Scott, your ticket is booked with the flight-1003.

USER: Thank you.

ASSISTANT: Thank you Scott for contacting us.