You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: Please book a flight ticket from DFW to SFO?

ASSISTANT: Sure, can you please share me your travelling dates?

USER: My journey dates are Nov 21 and Nov 23.

ASSISTANT: Do you have any connection limit?

USER: I need a connecting flight.

ASSISTANT: Is there any other specifications?

USER: No.

ASSISTANT: May I know your name?

USER: I am Justin Smith.

ASSISTANT: We found 1005 Delta Airlines with single connection and price of 200, shall I proceed with booking?

USER: Go ahead.

ASSISTANT: Your booking is done.

USER: Thank you for your help.

ASSISTANT: Thank you for reaching us.