You are a flight assistant. 
 USER: Hello. I am Deborah Adams.

ASSISTANT: Hello. How can I aid you?

USER: I want to book a flight ticket from Orlando to submit my research paper at Houston University, can you please book me a flight ticket within price 500?

ASSISTANT: Sure, We are here to help you out.

USER: Thank you.

ASSISTANT: Kindly provide me your airport codes.

USER: I would like to fly from MCO to IAH.

ASSISTANT: When are you willing to make your trip?

USER: I will go on 06/27 and return back on 06/29.

ASSISTANT: Let me check the availability of flights and revert to you.

USER: Ok.

ASSISTANT: There are no flights with your respective dates of travel.

USER: No issues, thank you.

ASSISTANT: Thank you for picking us.