You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I help you?

USER: I need to reserve flight ticket from JFK to LAS, can you please help me?

ASSISTANT: Sure, can I know your travelling dates?

USER: My planned travelling dates are Dec, 11 and 13 respectively.

ASSISTANT: Do you prefer a connecting flight or direct flight?

USER: Flight has to be with single connection.

ASSISTANT: May I know your class preference?

USER: I prefer to travel in economy class.

ASSISTANT: Can I know your airline preference?

USER: I am comfortable to travel in any airlines.

ASSISTANT: May I know your depart and return time?

USER: I am comfortable to travel in any time.

ASSISTANT: Hold on a minute.

USER: Sure, I will wait.

ASSISTANT: We found a flight on Jetblue airline, flight number 1015 with the fare of 200. Can I proceed for booking?

USER: Please proceed for booking.

ASSISTANT: May I know your name?

USER: Emma King here.

ASSISTANT: Your ticket has been booked.

USER: Thank you for your service.

ASSISTANT: Thank you for choosing us.