You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I serve you today?

USER: On 02/10, I have planned to book a flight to reach Houston for documentary purpose, so aid me in booking a flight with a halt.

ASSISTANT: Sure, we are here to help you. Kindly mention your airport codes.

USER: Ok. My airport codes are DEN - HOU.

ASSISTANT: May I know your return date?

USER: I want to catch my return flight on 02/12.

ASSISTANT: How much can you afford for this journey?

USER: I can afford up to 500.

ASSISTANT: Ok, please wait a moment.

USER: Sure.

ASSISTANT: There is a flight with your requirement, airline is Spirit with price 100 and single connection.

USER: Ok, please proceed with booking.

ASSISTANT: Your booking is done.

USER: Ok, Thanks for helping me.

ASSISTANT: May I know your name?

USER: My name is Charles Collins.

ASSISTANT: Thanks for reaching us, have a good day.

USER: Thank you.