You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: I want to book a connecting flight from PHL to SFO. Can you please help me with the booking?

ASSISTANT: Sure, please share your journey dates?

USER: My travelling dates are Feb 26 - Feb 28.

ASSISTANT: Do you have any specifications?

USER: No.

ASSISTANT: Is there any class preferences?

USER: No.

ASSISTANT: May I know your good name?

USER: I am Christine Clark.

ASSISTANT: We found a flight in Spirit airlines, flight number is 1003 with single connection and price is 100 economy class. Shall I proceed?

USER: Ok, please proceed.

ASSISTANT: Your ticket has been booked.

USER: Thank you.

ASSISTANT: Thank you for choosing us.