You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Patrick Allen.

ASSISTANT: How can I assist you today?

USER: I am looking for a flight from HOU to DFW, can you help me in booking the flight ticket?

ASSISTANT: Sure, I am gleeful to help you in booking the flight ticket. May I know your travel dates?

USER: My trip dates are from 01/16 till 01/18.

ASSISTANT: Here is a flight available with single connection and airfare is about 100. Can I proceed further in booking?

USER: Please proceed with it.

ASSISTANT: Your ticket has been confirmed for the flight 1015 in Spirit airlines.

USER: Thank you for your help.

ASSISTANT: Thank you for reaching us.