You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you?

USER: Can you please help me to search a flight with 0 connection limit?

ASSISTANT: Sure, may I know your travelling airport codes?

USER: The corresponding airport codes are from PA-PHL to MA-BOS.

ASSISTANT: Ok, can you please share your dates of travel?

USER: The travelling dates are 05/05 to 05/07.

ASSISTANT: Sorry to say, I did not find any flights on your dates.

USER: Ok, no problem.

ASSISTANT: May I know your name for documentation purpose?

USER: Sure, my name is Eric Parker.

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

USER: Thank you for your information.