You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, what can I do for you today?

USER: I have planned to visit Denver Museum of Nature and Science in Denver, can you please find a flight from New York?

ASSISTANT: Surely, I will help you out.

USER: I am happy for your quick response.

ASSISTANT: When are you planning to start and return?

USER: I would prefer to start my journey on DEC-10th and I want to return back on DEC-12th.

ASSISTANT: Ok, let me know your connection limit.

USER: Mostly, I prefer a single connecting flight.

ASSISTANT: May I know your airport codes please?

USER: The genesis and terminus airport codes are LGA and DEN.

ASSISTANT: Is there any other concerns?

USER: No, I didn't have any other concerns.

ASSISTANT: Ok, please specify your name.

USER: My name is William Thompson.

ASSISTANT: We found a connecting flight with a fare of 100 in 1003 American Airline, shall I proceed?

USER: Yes, I am happy to travel in an American Airlines. Please reserve a seat for me to travel in this airlines.

ASSISTANT: Ok, your ticket has been confirmed in economy class.

USER: Thanks a lot for your support and providing the best service.

ASSISTANT: Thank you for choosing us.