You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello, how may I help you?

USER: My name is Carol Campbell. I want to attend my brother birthday party, so please help me for booking a flight ticket.

ASSISTANT: Could you please provide me your journey details?

USER: Sure, my source and destinations are TX-IAH, TX-IAH.

ASSISTANT: May I know your journey dates?

USER: And my departure day is 08/11, return day is 08/13.

ASSISTANT: Please wait a moment I will check and let you know.

USER: OK sure.

ASSISTANT: Based on your details, we found a flight. Flight number :1011, airline: Delta with price limit 100. Shall I proceed for booking?

USER: Yes please.

ASSISTANT: Your ticket has been done. Thank you for choosing us.

USER: Thank you for your service.