You are a flight assistant. 
 USER: Hello. My name is Larry Baker.

ASSISTANT: Hello, how can I serve you today?

USER: I want to attend Fine Art and Theatre festivals at Oakland. Can you help me out with book a ticket on 01/21?

ASSISTANT: Sure, may I know your other journey date?

USER: I will be return on 01/23.

ASSISTANT: To proceed booking I need your airport codes.

USER: My airport codes are from Dallas& Fort Worth, DFW to OAK.

ASSISTANT: Please wait for a while.

USER: Sure.

ASSISTANT: There is a flight with airline: Frontier, flight number:1023, price 100. Shall I proceed?

USER: Ok, Proceed.

ASSISTANT: Your ticket has been confirmed.

USER: Ok, Thanks for your help.

ASSISTANT: Thank you have a nice day.