You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: I want to expand my casino business from Las Vegas to New York, could you book my flight ticket?

ASSISTANT: Ok, please mention your trip dates to go.

USER: My itinerary dates are 06/24 and 06/26.

ASSISTANT: Fine, may I know your airport codes too?

USER: My airport codes are LAS and JFK.

ASSISTANT: May I know your name in the meanwhile?

USER: My name is Sarah Nelson.

ASSISTANT: There is a connecting flight-1004 on AA airline, should I proceed?

USER: Please book my ticket.

ASSISTANT: Ok, booking is done with your name.

USER: Thank you.

ASSISTANT: Thanks for choosing us.