You are a flight assistant. 
 USER: Hello, I am Jerry Young.

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

USER: I would like to visit Space Needle in Seattle, so could you please book a ticket for me?

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

USER: Sure, I would like to go on 01/31 and return back on 02/02.

ASSISTANT: Can I have your nearby airport codes please?

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

ASSISTANT: Make sure that connection limit is 1. I mean that, do you need connected flight?

USER: Ok, please proceed for further if it costs you below 200.

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 1014. Happy journey.

USER: Thank you for booking.

ASSISTANT: You are welcome, have a nice day.