You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I'm Gary Campbell.

ASSISTANT: How can I assist you?

USER: I am planning to attend music concert at LAS, can you please help me with booking a flight ticket from SFO?

ASSISTANT: Ok, may I know your travelling dates?

USER: Sure, I would like to take off on 09/21 and return back on 09/23.

ASSISTANT: There is a flight ticket with 1 connection flight and 1007 as flight number with  Delta airline.

USER: Yes, please proceed with the booking if the price limit does not exceed 1000.

ASSISTANT: Ok, your ticket is confirmed with 300 fare.

USER: Thank you for your help.