You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you today?

USER: Dennis Moore here. I would like to book a ticket from SFO to LAS. Where I have an appointment with a doctor.

ASSISTANT: Sure, to book a ticket may I know your planned trip dates?

USER: My planned journey dates are Sept 06 and Sept 08.

ASSISTANT: Do you have any other requirements?

USER: I would prefer travelling by a connected flight.

ASSISTANT: We found a flight with an United airlines of flight 1025 in an economy class with lay by. Shall I confirm your booking?

USER: Please proceed for booking.

ASSISTANT: Your seat has been reserved.

USER: Thank you for the assistance.

ASSISTANT: Thank you for opting us.