You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I aid you today/. Hello, how can I aid you today?

USER: I am Deborah Lee and I want to book a flight ticket from CA-LAX to NY-EWR.

ASSISTANT: Sure, may I know your journey dates?

USER: My travelling dates are from 07/27 to 07/29.

ASSISTANT: Your flight number is 1005 with Frontier airlines and price limit is 200. Shall I proceed for booking?

USER: Ok you can proceed booking with that airline.

ASSISTANT: Your ticket has been confirmed.

USER: Thank you for response.

ASSISTANT: Thank you, have a safe journey.