You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you at this moment?

USER: I want to visit Red Rock Canyon in Las Vegas, can you please help me to book a flight from New York?

ASSISTANT: Sure, I am here to help you. Can you please provide your journey dates?

USER: I will travel on 14th and 16th of November.

ASSISTANT: Can you please provide your airport codes of journey?

USER: I will fly from JFK to LAS.

ASSISTANT: Do you have any connection limit preference for this trip?

USER: I want a direct flight.

ASSISTANT: Do you have any class preference for this trip?

USER: No, I am ok to travel in any class.

ASSISTANT: Do you have any other specifications for this trip?

USER: No.

ASSISTANT: May I know your good name please?

USER: My name is Ryan Martin.

ASSISTANT: Ryan Martin, there are no direct flight services are available on this route on your provided dates.

USER: No problem, thank you for the information.

ASSISTANT: Thank you for opting us.