You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you?

USER: Can you help me in doing a reservation from LAX to LAS?

ASSISTANT: Sure, please provide your itinerary dates.

USER: My trip dates are Nov 21 to 23.

ASSISTANT: Which class do you prefer?

USER: No.

ASSISTANT: May I know your name?

USER: I am Mary Lee.

ASSISTANT: Do you prefer a direct flight?

USER: I need a single connecting flight.

ASSISTANT: Do you have any preferences?

USER: Please ensure that my depart time is in afternoon.

ASSISTANT: Ok. JetBlue airlines with flight 1024 is providing a connecting flight and ticket costs you 200 in business class.

USER: Ok, please proceed.

ASSISTANT: Your ticket is reserved Mary Lee.

USER: Thank you.

ASSISTANT: Thank you for reaching us.