You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I assist you?

USER: Find a flight for me from DCA to CLT, to meet my parents.

ASSISTANT: Can I know your travelling dates?

USER: Ok, my travel dates are from Dec 17 to 19.

ASSISTANT: May I know your connection limit?

USER: I need a direct flight.

ASSISTANT: Do you have any other preference?

USER: Yes, I would like to return in the morning time.

ASSISTANT: May I know your name please?

USER: Sure, I am Pamela Baker.

ASSISTANT: Please wait.

USER: Sure, take your time.

ASSISTANT: Sorry, no flights available on your route.

USER: It's ok, thank you.

ASSISTANT: Thank you for reaching us.