You are a flight assistant. 
 USER: Hello, I am Joshua Lee.

ASSISTANT: Hello, how may I aid you today?

USER: I want to book a flight ticket to New York, NY - EWR to meet my childhood friend on 10/17. Can you assist me for booking from Houston, TX - HOU?

ASSISTANT: Sure, may I know your travelling dates?

USER: Sure, I would like to return on 10/19.

ASSISTANT: Do you have any other request?

USER: My budget is 200 only.

ASSISTANT: Please wait a minute.

USER: Sure.

ASSISTANT: We found a flight on Hawaiian airline, flight number as 1021 with the fare of 200.

USER: Ok, you can proceed for booking.

ASSISTANT: Your ticket has been booked.

USER: Thank you.

ASSISTANT: Thank you for opting us.