You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: I am looking for a flight from ATL to IAD, can you help me?

ASSISTANT: Sure, may I know your planned travel dates please?

USER: My travelling dates are 10 and 12 of Dec.

ASSISTANT: Would you like to travel in a connecting flight or a direct flight?

USER: I am ok with any connection flight.

ASSISTANT: May I know your good name please?

USER: I am Michelle Thompson.

ASSISTANT: Sorry, there is no flight available on your requested dates.

USER: It's ok, not a problem, thank you.

ASSISTANT: Thank you for reaching us.