You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Donald Anderson.

ASSISTANT: How can I serve you?

USER: I want to book a flight ticket from TX-DFW to TX-HOU to meet my aunt. Could you please help me with booking a flight ticket?

ASSISTANT: Sure, I can help you. Can I know your travelling dates?

USER: My travelling dates are 05/23 and 05/25.

ASSISTANT: Please wait a while.

USER: Sure.

ASSISTANT: We found a AA airline, flight number:1009 and the price is 100.

USER: You can proceed with booking.

ASSISTANT: Your flight ticket has been reserved.

USER: Thank you for your help.

ASSISTANT: Thank you for choosing us.