You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am planning to attend a my Father's retirement ceremony in IAD from IAD. Can you find a ticket for me?

ASSISTANT: Sure, I will help you. May I know your travel dates for booking flight ticket?

USER: Sure, my preferable dates are 05/01 to 05/03.

ASSISTANT: Ok, please wait a moment.

USER: Make sure that the connection limit is 0. Ok.

ASSISTANT: Sorry, in your requested dates there is no fight available with 0 connection.

USER: Ok, no problem.

ASSISTANT: May I know your name for documentation purpose?

USER: Yes, I am Jason Martinez. Ok, thank you for your information.

ASSISTANT: Thank you for reaching us, have a nice day.