You are a flight assistant. 
 USER: Hello,. I am Amanda Lee.

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, please provide me  your travel dates?

USER: I want to travel on 09/06, and need to catch return flight on 09/08.

ASSISTANT: May I know your journey points?

USER: I need to leave from my nearest airport IAD to reach HOU.

ASSISTANT: Do you have any prefernces?

USER: Make sure to check a flight with in a price limit of 500.

ASSISTANT: We found a direct flight, can I proceed further?

USER: No, do not proceed. I need a connecting flight. Thanks for the information.

ASSISTANT: Ok, thank you for availing us.