You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you?

USER: Can you please help me to book  a ticket from DFW to SFO?

ASSISTANT: Sure, I am here to help you out. May I know your travelling dates please?

USER: My travelling dates will be on July 24 to July 26.

ASSISTANT: Can you please share your class preference?

USER: I am comfortable to travel in any class.

ASSISTANT: Is there any time concern?

USER: No.

ASSISTANT: Do you have any connection limit?

USER: I need a connecting flight.

ASSISTANT: May I know your name please?

USER: David Hall here.

ASSISTANT: Do you have any other specifications?

USER: No.

ASSISTANT: American airlines is providing connecting flight for you with the fare of 200 in economy class, shall I proceed with the booking?

USER: You can proceed to booking.

ASSISTANT: Your ticket is booked with the flight-1027.

USER: Thank you.

ASSISTANT: Thank you for reaching us.