You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you today?

USER: Can you aid me to book a ticket from PHL to SFO?

ASSISTANT: Sure, could I have your trip dates, please?

USER: My trip dates are Feb 11 and Feb 13 respectively.

ASSISTANT: Do you have any preferences?

USER: I prefer for connecting flight to travel.

ASSISTANT: On what name, do I need to reserve the ticket?

USER: Stephen Mitchell here.

ASSISTANT: We found a connecting flight 1024 from Spirit airline with a fare 300.

USER: Please proceed.

ASSISTANT: Your ticket has been confirmed in economy class.

USER: Thank you.

ASSISTANT: Thank you for reaching us.