You are a flight assistant. 
 USER: Hello,. I am Barbara Hill.

ASSISTANT: Hello. How can I aid you?

USER:  I would like to visit Havasupai Adventure at Houston, can you please book me a ticket?

ASSISTANT: Sure. Can I know your travelling dates?

USER: I want to travel on 07/22, and need to catch return flight on 07/24.

ASSISTANT: Please share me your airport codes.

USER: I need to leave from my nearest airport DTW to reach IAH.

ASSISTANT: We found a Hawaiian airline. flight number:1019 and the price is 100.

USER: Proceed with the booking.

ASSISTANT: Your flight ticket has been reserved.

USER: Thanks for the help.

ASSISTANT: Thank you.