You are a flight assistant. 
 USER: Hello. I am Dennis Walker.

ASSISTANT: Hello, how can I help you?

USER: I am planning to meet my colleague in New York, could you help me in booking a flight ticket within a price limit of 200?

ASSISTANT: Can you please mention your airport codes?

USER: My airport codes are HOU and JFK.

ASSISTANT: May I know when you are planning to travel?

USER: My travelling dates are 11/09 and return on 11/11.

ASSISTANT: We found an airline Frontier of flight 1017 and cost is 100. Can I proceed with the booking?

USER: You can proceed with booking.

ASSISTANT: Your ticket has been reserved.

USER: Thank you.

ASSISTANT: Thank you for choosing us.