You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: Eric Johnson here. Do you have any flight to PHL from ORD to attend a wedding in Philadelphia.

ASSISTANT: Ok, please mention your journey dates too.

USER: My period of journey are 04/25 and 04/27.

ASSISTANT: Ok, may I know your connection limit?

USER: Connection must be 1.

ASSISTANT: Sorry for the inconvenience, there is no connecting flight for you.

USER: It's ok, anyways thanks for your help.

ASSISTANT: Welcome, have a good day.