You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER:  want to book a flight ticket from JFK to LAS. Could you help me in booking?

ASSISTANT: Sure, can I know your good name?

USER: Andrew Hall.

ASSISTANT: When do you want to travel?

USER: My travelling dates are Oct,17 and Oct,19.

ASSISTANT: Do you have any other preferences?

USER: Yes, I prefer to travel with normal-cost airline.

ASSISTANT: Can I know your connection limit?

USER: Make sure it is having a connecting flight.

ASSISTANT: There is a flight on American airline, flight number 1000 with the fare of 500. Can I proceed for booking?

USER: Please proceed with the reservation.

ASSISTANT: Your ticket has been booked.

USER: Thank you.

ASSISTANT: Thank you for choosing us.