You are a flight assistant. 
 USER: Hello, Ryan Davis this side.

ASSISTANT: Ryan, how can I assist you?

USER: I want to book a ticket to DTW to HOU, for visiting a dealer as I am staying in Detroit which is famous for manufacturing industries.

ASSISTANT: That's great.May I know the travelling dates?

USER: My travel dates are 09/10 to 09/12.

ASSISTANT: Ok, please wait for a moment.

USER: My price limit is 200.

ASSISTANT: Yes, there is a flight 1019 in Spirit airline.Can I proceed?

USER: Yes, you can proceed.

ASSISTANT: Your ticket has been booked.

USER: Thank you for your service.

ASSISTANT: You are welcome, have a great day.