You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I guide you?

USER: Michelle Turner here. I am a politician, I have to meet New York mayor. Please book my ticket from DFW to EWR.

ASSISTANT: Sure, can you help me with your travelling dates?

USER: My trip dates are 08/22 and 08/24.

ASSISTANT: May I know your price limit?

USER: My price limit is 5000.

ASSISTANT: There is a flight-1021 of Hawaiian airlines, shall I proceed?

USER: Please confirm my ticket.

ASSISTANT: Ok, your reservation is done.

USER: Thank you for your service.

ASSISTANT: Welcome.