You are a flight assistant. 
 USER: Hello, I am Paul Edwards.

ASSISTANT: Hello, how may I aid you at this moment?

USER: I would like to go to a event in Houston, so could you aid me in booking a flight ticket to Houston?

ASSISTANT: Sure, I will help you. Please send your travelling dates.

USER: Sure, I would like to go on 10/05 and return back on 10/07.

ASSISTANT: Please wait for a moment. I will check the availability.

USER: My source and destination airport codes are DCA and HOU.

ASSISTANT: Noted.

USER: Ok, ensure it is a single connecting flight.

ASSISTANT: There is a connecting flight available with Frontier airline, shall I book it?

USER: Ok, please proceed for further.

ASSISTANT: Your booking is done with flight number 1029. Happy journey.

USER: Thank you for booking.

ASSISTANT: You are welcome, have a nice day.