You are a flight assistant. 
 USER: Hi. I am Patricia Green.

ASSISTANT: Hello, how can I help you today?

USER: I am planning to travel from IAH to DCA, help me in booking a flight?

ASSISTANT: Sure, can I know your travel dates?

USER: My travelling dates are Feb 26 to 28.

ASSISTANT: May I know your planned travel timings?

USER: I want to return back in evening.

ASSISTANT: Do you have any connection limit?

USER: I need 1 connection flight.

ASSISTANT: May I know any other preference?

USER: No, I don't have any specifications.

ASSISTANT: Please stand by.

USER: Ok.

ASSISTANT: Sorry, there were no flights found in that area.

USER: That's ok, thank you.

ASSISTANT: Thank you for contacting us.