You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: I have planned to book a plane ticket from CLT to LAS, can you assist me in booking?

ASSISTANT:  I am here to help you with your concern. Sure, can you please let me know your trip dates?

USER: My trip dates are Dec 2nd and Dec 4th.

ASSISTANT: Would you like to fly with connecting flight or direct flight?

USER: I need to travel in connecting flight.

ASSISTANT: Are you comfortable with economy class flight or business class flight?

USER: I am ok with any class.

ASSISTANT:  Do you have any specific time concern?

USER: No.

ASSISTANT: Could you help me with your name please? So, I can check for the flights availability.

USER: Donna Anderson.

ASSISTANT: There is a flight available for the mentioned and also which match your needs, Delta Airlines is having a connecting  flight with 1020 flight number and airfare is 100. Are you comfortable with this flight?

USER: Proceed booking.

ASSISTANT: Your flight ticket has been booked.

USER: Thank you for booking.

ASSISTANT: Thank you for reaching us.