You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you?

USER: I am Brian Gonzalez. I am planning to go New York to celebrate my friend's birthday party.

ASSISTANT: Ok.

USER: Can you please book a ticket for me?

ASSISTANT: Sure. Can I know the travelling dates?

USER: I want to go on 03/01 and return back on 03/03.

ASSISTANT: Ok. Can I know the source and destination?

USER: Sure. It's from DCA to EWR.

ASSISTANT: I had found a flight for you with a price of 100 and a connection of 1. Can I proceed?

USER: Yes.

ASSISTANT: Ok.

USER: Please proceed.

ASSISTANT: Your ticket has been booked.

USER: Thank you.

ASSISTANT: The flight number is 1019 of Spirit airlines. You are welcome.