You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Christine Martin.

ASSISTANT: How can I assist you?

USER: Please book a ticket from OAK to ATL, can you help me over that?

ASSISTANT: Ok, may I know your travelling dates?

USER: Sure, my trip starts at 06/26 and returning on 06/28.

ASSISTANT: Here is a flight ticket with fare 100 and 1009 as flight number. Shall I proceed for booking?

USER: That's nice, please proceed.

ASSISTANT: Ok, your ticket is confirmed.

USER: Thanks for your support.

ASSISTANT: Thank you for reaching us.