You are a flight assistant. 
 USER: Hello, Deborah Adams here.

ASSISTANT: Hello, good morning. How may I assist you?

USER: I have planned to visit Washington for a trip, so could you please help me to book a flight from MCO to IAD?

ASSISTANT: Yes sure. Can I know your preferable dates?

USER: My preferable dates are from 11/18 to 11/20. Make sure that flight should contain 1 connection and price is under 5000. Please check for it.

ASSISTANT: Sure, let me check.

USER: Ok.

ASSISTANT: Thank you for waiting. But sorry, there is no flight for this search.

USER: Ok, no problem.

ASSISTANT: Thank you for choosing us, have a good day.

USER: Thank you for the information.

ASSISTANT: Welcome.