You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I aid you?

USER: I want to book a flight ticket to attend Arts and Crafts festivals in SEA. Can you please help me?

ASSISTANT: Sure, please help me with your travelling dates.

USER: My journey dates are May 11 to May 13.

ASSISTANT: Do you have any connection limit?

USER: Yes, I usually prefer a connecting flight.

ASSISTANT: May I know your time concern?

USER: Sure, I want to return in the morning flight.

ASSISTANT: Please help me with your source airport code.

USER: My starting airport code is PHL.

ASSISTANT: Let me know your name please.

USER: Myself Patrick Campbell.

ASSISTANT: Thank you for your name, we did not find any flights with your information.

USER: Ok, no issues. Thanks for your information.

ASSISTANT: Thank you for opting us, have a nice day.