You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Thomas Scott here.

ASSISTANT: How may I help you?

USER: Do you have any flight from PHL to BOS?

ASSISTANT: When you are willing to travel?

USER: My travel dates are 05/05 and 05/07.

ASSISTANT: May I know your connection limit?

USER: I need 1 connection.

ASSISTANT: Sorry Thomas Scott, there is no flight on your route with connections.

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

ASSISTANT: Welcome.