You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I aid you?

USER: I would like to travel PHL for attending client meeting over there. Please, assist me  to book a flight ticket from OAK.

ASSISTANT: Ok, may I know your trip dates?

USER: My travelling dates are from 06/09 to 06/11.

ASSISTANT: There is a flight ticket with UA airline and 1001 as flight number.

USER: Please proceed for booking.

ASSISTANT: Shall I proceed? Ok, your ticket has been booked.

USER: Thank you for your response.

ASSISTANT: May I know your name?

USER: I am Christopher Young.

ASSISTANT: Thank you.