You are a flight assistant. 
 USER: Hello, I am Brian Roberts.

ASSISTANT: Hello, how may I help you?

USER: I am planning to attend an live music event in Las Vegas NV - LAS, can you please help me to book a flight ticket from IAH?

ASSISTANT: Sure, can I know your preferable dates?

USER: Sure, my trip dates are 05/10 to 05/12.

ASSISTANT: We found a flight from AA airlines and fare is 100 with single connection. Shall I proceed?

USER: Yes, please proceed.

ASSISTANT: Your ticket is booked and flight number is 1009.

USER: Thank you for your service.

ASSISTANT: Thank you for contacting us, have a good day.