You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I aid you today?

USER: I am planning to visit Houston, will you help me in booking the flight ticket from LAS to HOU?

ASSISTANT: Please share your trip dates?

USER: My travelling dates are Oct 31 and Nov 02.

ASSISTANT: Do you need a connecting flight?

USER: I need a flight with single connection.

ASSISTANT: Do you have any other specifications?

USER: I prefer to travel in business class.

ASSISTANT: Can I know your good name?

USER: Myself Scott Mitchell.

ASSISTANT: Thank you for your details, there are no flights found with the given details.

USER: Ok, not an issue. Thank you for your information.

ASSISTANT: Thank you.