You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I aid you?

USER: I would like to book a ticket from ATL to LAX, can you please help me with that?

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

USER: The travel dates are from 09/21 to 09/23.

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

USER: I need a direct flight.

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

USER: No.

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: Jessica Mitchell here.

ASSISTANT: There is a flight available for the mentioned and also which match your needs, JetBlue Airlines is having a direct flight with 1027 flight number and airfare is 200. Are you comfortable with this flight?

USER: Please proceed.

ASSISTANT: Your flight ticket has been booked.

USER: Thank you.

ASSISTANT: Thank you for opting us.