You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Janet Thomas.

ASSISTANT: How can I serve you now?

USER: I have to plan to celebrate my brother's birthday at Laser Quest which is in Denver to surprise.

ASSISTANT: Ok.

USER: Can you please help me in booking a airline reservation?

ASSISTANT: Sure. To book a ticket, may I know your airport codes?

USER: My airport codes are from Houston TX-HOU to Denver CO-DEN.

ASSISTANT: Let me know your journey dates please.

USER: My journey dates are 10/05 and 10/07.

ASSISTANT: Do you have any preferences?

USER: Yes, I need a flight with one connection. I can afford upto 5000.

ASSISTANT: Frontier airline of price 100 with a connecting flight is available. In 1025 flight.

USER: Please continue with the booking.

ASSISTANT: Sure, booking was done.

USER: Thank you for your kind help.

ASSISTANT: Thank you for your time with us. Have a safe journey.