You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: Can you please help me in booking a flight ticket from PHL to SFO?

ASSISTANT: Sure. May I know your connection limit please?

USER: I need a connecting flight.

ASSISTANT: Now please tell me your travel dates?

USER: Sure, my travel dates are from Feb 17 to Feb 19.

ASSISTANT: May I know your name please?

USER: Jonathan Thomas here.

ASSISTANT: Any other preferences?

USER: I prefer economy class.

ASSISTANT: Please wait.

USER: Sure.

ASSISTANT: Thanks for your patience. I have found Delta airlines which flies with one connection.

USER: Ok, please confirm my ticket.

ASSISTANT: Yes, I have confirmed your flight ticket in flight number 1003.

USER: Thank you for booking.

ASSISTANT: Thank you.