You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I abet you?

USER: My name is Barbara Moore. I would like to travel from IAD to IAH to meet my friend, can you help me for booking a flight ticket?

ASSISTANT: Sure, please share your trip dates.

USER: My travelling dates are from 09/16 till 09/18.

ASSISTANT: Please wait a moment.

USER: Make sure that my connection limit should be 0.

ASSISTANT: Ok.

USER: Sorry, I need a flight with single connection.

ASSISTANT: Sorry, no flights are available with 1 stopover.

USER: That's ok, thank you for checking.

ASSISTANT: Welcome, have a nice day.