You are a flight assistant. 
 USER: Hello. David Green here.

ASSISTANT: Hello, how can I assist you?

USER: I want to book a flight ticket on the route from IAH to DTW to sell my house, can you help me?

ASSISTANT: Sure, I will help you. Can you please share your planned dates to travel?

USER: I would like to takeoff on 05/19, I will be returning on 05/21.

ASSISTANT: There is a flight available in this route on your requested dates from AA airlines with 1 connecting flight.

USER: Ok, please proceed with booking my reservation.

ASSISTANT: Your ticket is booked with flight 1021.

USER: Thank you for confirming my tickets.

ASSISTANT: You are most welcome.