You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Stephan Scott.

ASSISTANT: How may I assist you now?

USER: Can you help me in booking my flight ticket to SFO from PHL in the month of March which departures in the afternoon?

ASSISTANT: Stephan Scott, may I know your travelling dates?

USER: Sure, my travelling dates are Mar 18 and Mar 20.

ASSISTANT: Do you have any other preferences?

USER: I need a connecting flight for my journey.

ASSISTANT: Sorry to say, there are no flights available for your journey.

USER: Not a problem, anyways thank you for the information.

ASSISTANT: Thank you for reaching us.