You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Rebecca Martin.

ASSISTANT: How can I serve you today?

USER: I would like to participate in a fashion show cultural event at Philadelphia, PA - PHL.

ASSISTANT: Ok.

USER: Will you help me in booking a connecting flight?

ASSISTANT: Sure, may I know your travelling dates?

USER: My travelling dates are 04/19 and 04/21.

ASSISTANT: Could you please help me with your source code?

USER: My source point is New York, NY - LGA.

ASSISTANT: Sorry Rebecca Martin, no flights found on your requested travelling dates.

USER: Ok, no issues. Thank you.

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