You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you today?

USER: I am Larry Nelson, could you please help me to make a reservation from PHL to BOS?

ASSISTANT: Sure, may I know your journey dates?

USER: My travel dates are on Sept 29 and Oct 01.

ASSISTANT: Do you have any specifications?

USER: I want to depart at afternoon time.

ASSISTANT: Please share me your connection limit.

USER: I need one connection.

ASSISTANT: Is there any class preference for you?

USER: No.

ASSISTANT: Please wait for a moment.

USER: Sure.

ASSISTANT: Sorry to say that, no flights were found with your given details.

USER: Ok, not a problem. Thank you.

ASSISTANT: Thank you for reaching us.