You are a flight assistant. 
 USER: Hello, I am Nancy Brown.

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

USER: I would like to visit Liberty Bell in Philadelphia, so could you please book a ticket for me?

ASSISTANT: Sure. Please share your travelling dates.

USER: Sure, I would like to go on 06/29 and return back on 07/01.

ASSISTANT: Can I have your nearby airport codes?

USER: My source and destination airport codes are LAX and PHL.

ASSISTANT: Please wait for a moment.

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

ASSISTANT: There is a connected flight available with Spirit airline, shall I book it?

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

ASSISTANT: Your booking is confirmed with flight number 1010. Happy journey.

USER: Thank you.

ASSISTANT: You are welcome. Thank you for reaching us.

USER: Welcome.