You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I aid you today?

USER: Can you please help me to book flight ticket from DCA to SFO?

ASSISTANT: Sure, help me with the trip dates?

USER: My trip dates are Nov 5 and Nov 7.

ASSISTANT: May I know your good name please?

USER: I am Angela Collins.

ASSISTANT: Do you have any preferences for this trip?

USER: I prefer a connecting flight.

ASSISTANT: We found a flight in an airline Spirit with 1004 number having a single connection price of 100 in an economy class. Shall I proceed to book?

USER: Please proceed for booking.

ASSISTANT: Your flight ticket has been booked.

USER: Thank you.

ASSISTANT: Thank you for reaching us. Have a safe flight.