You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I aid you?

USER: I am Andrew Lee. Can you help me to find a connecting flight from SEA to PHL?

ASSISTANT: Sure, when do you want to travel?

USER: My travelling dates are 02/10 and 02/12.

ASSISTANT: Ok, Do you have any airline preference?

USER: No, I am comfortable with any airlines.

ASSISTANT: Ok, please wait for a while.

USER: Sure.

ASSISTANT: Thank you for waiting, There were no flights found with your given requirements.

USER: That's fine, thanks for your information.

ASSISTANT: Thank you for choosing us.