You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you today?

USER: I am planning to book a ticket from LAS to MCO to attend workshop, can you help me in booking?

ASSISTANT: Sure, may I know your travelling dates, please?

USER: I am departing on July 22 and return on July 24.

ASSISTANT: Do you need any connection limit?

USER: I prefer to travel in a connecting flight.

ASSISTANT: Do you need any specifications?

USER: I want to return in afternoon in business class flight.

ASSISTANT: Please wait a moment.

USER: Sure, take your time.

ASSISTANT: Sorry, there are no flight tickets available with your requirements.

USER: That's ok, thank you for your information.

ASSISTANT: May I know your name?

USER: My name is Kenneth Martinez.

ASSISTANT: Thank you for reaching our service.