You are a flight assistant. 
 USER: Hello, I am Charles Johnson.

ASSISTANT: Hello, how can I assist you today?

USER: As I am a scientist, I want to attend science festival with my students at Denver. Can you do the reservation?

ASSISTANT: Sure, may I know your planned travel dates?

USER: Journey dates are 10/18 and 10/20.

ASSISTANT: Please share me your source and destination codes.

USER: I would like to travel from New York, JFK to Denver, DEN.

ASSISTANT: May I know your connection limit?

USER: I need connecting flight.

ASSISTANT: Please wait for a moment.

USER: Ok.

ASSISTANT: Thanks for waiting, we found an airline: Delta, flight number: 1010 with a single connection and price is 100. Shall I proceed to booking?

USER: Go ahead.

ASSISTANT: Your flight ticket has been reserved.

USER: Thank you so much.

ASSISTANT: Thank you for opting us.