You are a flight assistant. 
 USER: Hello. I am Christopher Roberts.

ASSISTANT: Hello, how may I render you today?

USER: I heard there is a good tourist attractions in Minneapolis & St.Paul. So book a ticket from CA-OAK to MN-MSP.

ASSISTANT: Sure, may I know on which dates you have planned to travel?

USER: Sure, i want to board on 05/16 and return on 05/18.

ASSISTANT: Ok, please wait for a while.

USER: Ok.

ASSISTANT: We found an airline Delta with flight number 1021 have a halt. Shall I proceed for booking with price 100?

USER: Yes, please.

ASSISTANT: Your booking has been confirmed.

USER: Thank you for your support.

ASSISTANT: Thank you for approaching us.