You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: Nancy Carter here.

ASSISTANT: Nancy, how may I help you?

USER: Book a ticket from DEN to LGA, to attend a business meeting.

ASSISTANT: Sure, please provide your itinerary dates.

USER: Ok, my trip dates are from 08/02 and 08/04.

ASSISTANT: Please hold on for a while.

USER: Sure.

ASSISTANT: UA airlines with flight 1023 is providing service with a connecting flight.

USER: Proceed with booking.

ASSISTANT: Your ticket is confirmed.

USER: Thank you for your help.

ASSISTANT: Thank you for choosing us.