You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you today?

USER: I am Jack Parker. I am looking for a flight ticket to Washington within price 200 to attend a business meeting, can you help me with that?

ASSISTANT: Sure, when are you planning to travel?

USER: I need to go on 06/20 and I will return back on 06/22.

ASSISTANT: Let me know your source code and destination code.

USER: I want to depart from OAK to reach DCA.

ASSISTANT: Please stand by.

USER: Ok.

ASSISTANT: There is a flight found with number 1021 in Hawaiian airline and the ticket price is 100. Shall I proceed?

USER: Yes, you can proceed.

ASSISTANT: Your ticket is confirmed.

USER: Thank you for your service.

ASSISTANT: Thanks for reaching us.