You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Christine Thompson.

ASSISTANT: How can I assist you at this moment?

USER:  I would like to enjoy my weekend trip with my friends. Can you please book a ticket within the price of 5000?

ASSISTANT: Sure, I am gleeful to help you in booking. Can I have your trip dates please?

USER: I would like to start m,y journey on 05/12 and my return will be on 05/14.

ASSISTANT: Kindly share your airport codes?

USER: My travelling airport codes are from LAS to DEN.

ASSISTANT: Flight 1015 in Spirit airlines is available for you with 1 connection and fare is 200. Shall I proceed?

USER: Please proceed.

ASSISTANT: Your booking is done.

USER: Thank you for booking.

ASSISTANT: Welcome, have a safe flight. Thank you for opting us.