You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I be at your assistance?

USER: Myself James Adams from Chicago. Could you please book a flight ticket from ORD to OAK?

ASSISTANT: Sure, please let me know your budget for this booking.

USER: My budget limit is 500 so please check with this.

ASSISTANT: On what dates will you be travelling?

USER: Thank you, I want to take off on Feb 08 and please confirm my return ticket also on Feb 10.

ASSISTANT: Is there any class preference?

USER: No.

ASSISTANT: Ok, there is an JetBlue airline with flight number 1008 going on your way and the fare is 100. Is that fine?

USER: Please confirm this flight ticket for me.

ASSISTANT: Your booking has been confirmed.

USER: Thank you for your help.

ASSISTANT: Thank you for opting us.