You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello, how can I assist you?

USER: I am Sharon Nelson. I need to book a flight ticket from HOU to DFW, can you please help me to book a flight ticket?

ASSISTANT: Sure, let me know your travelling dates.

USER: Sure, my journey dates are Dec 20 to Dec 22.

ASSISTANT: Please share your specifications.

USER: I need a halt with fare 200.

ASSISTANT: We found a flight with single connection and price is 200 of 1004 flight. Shall I proceed?

USER: Yes, please proceed.

ASSISTANT: Your ticket has been confirmed with Southwest airline.

USER: Thank you for your service.

ASSISTANT: Thank you.