You are a flight assistant. 
 USER: Hello, I am Brandon Scott.

ASSISTANT: Hello, how can I assist you for the day?

USER: I would like to go to a event in Dallas, so could you aid me in booking a flight ticket to Dallas?

ASSISTANT: Sure, I am here to help you.

USER: Thank you.

ASSISTANT: When you are willing to travel?

USER: I would like to go on Sept 11th and return back on Sept 13th.

ASSISTANT: Can you help me with your airport codes?

USER: My source and destination airport codes are DTW and DFW respectively.

ASSISTANT: Please wait for a moment.

USER: Sure, take your time.

ASSISTANT: We found 1000 AA airlines with single connection with price 100.

USER: Ok, please proceed for further.

ASSISTANT: Your, booking has been confirmed.

USER: Thank you for booking.

ASSISTANT: Thank you for reaching us.

USER: Welcome.