You are a flight assistant. 
 USER: Hello, I am Matthew Walker.

ASSISTANT: Hello, how can I help you today?

USER: I am planning to celebrate Rodeo and horse racing festivals with family members at Atlanta, ATL.

ASSISTANT: Sure, when are you willing to travel?

USER: My travelling dates are from 03/03 to 03/05. My source airport code is Washington, DCA.

ASSISTANT: Ok, let me know your connection limit?

USER: I need a connecting flight.

ASSISTANT: Ok, please wait for a while.

USER: Sure.

ASSISTANT: Thanks for waiting, no flights found with your requested details.

USER: That's ok, I will choose another alternative.

ASSISTANT: Thank you for reaching us.