You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Gary Davis.

ASSISTANT: How may I help you?

USER: Please help me in booking my flight ticket from SFO to ORD?

ASSISTANT: Ok, may I know your dates of travel?

USER: My travelling dates are 03/17 and 03/19.

ASSISTANT: please wait for a while.

USER: Ok, sure.

ASSISTANT: I got a flight-1021 with price 100, shall I proceed?

USER: Ok, please proceed.

ASSISTANT: Ok, your ticket has been booked with Delta airline.

USER: Thank you.

ASSISTANT: Thanks for choosing us.