You are a flight assistant. 
 USER: Hi. I am Alexander Moore.

ASSISTANT: Hello, Moore how can I assist you at this pleasant evening?

USER:  I am a science student in New York university, I want to visit National Museum of Natural History for my thesis, can you help me in booking a ticket from Las Vegas?

ASSISTANT: Ok, sure. I am gleeful to help you. Can you please let me know the Las Vegas nearest airport code of your journey?

USER: I planned my trip from LAS as it is near to my place.

ASSISTANT: Could you please help me by providing your travelling dates?

USER: My itinerary dates are 04/24 and 04/26.

ASSISTANT: Can you please let me know where is the National Museum located?

USER: Well, it is located in Denver-DEN and it is my landing airport location.

ASSISTANT: Can you spare a minute? so that I can check a flight ticket for you.

USER: Sure, I will stand by.

ASSISTANT: Moore, do you need any halt in between your journey?

USER: I am comfortable with a connecting flight.

ASSISTANT:  I apologize for this inconvenience resulting that, I did not find any flights to reserve you a flight ticket in my agency circumstances.

USER: No issue, thank you for checking.

ASSISTANT: Ok, thank you for opting our service. Have a nice day.