You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I support you today?

USER: I want to book a flight ticket from Orlando to meet my old friend to start a new business in Dallas, can you please help me in booking?

ASSISTANT: Sure, can you share your travel dates please?

USER: Sure, I am planning to start my journey on Mar 27th and my return date will be on Mar 29th.

ASSISTANT: Can you mention your specific airport codes please?

USER: My boarding airport code is MCO and my destination airport code is DFW.

ASSISTANT: May I know your good name please?

USER: I am Raymond Martin.

ASSISTANT: Please share me your connection limit.

USER: I prefer to fly with the connecting flight.

ASSISTANT: Is there any other preferences?

USER: No more specifications for this trip.

ASSISTANT: Please wait a minute.

USER: Sure.

ASSISTANT: Sorry, there is no flight on your required dates.

USER: That's ok, I'll choose any alternative to reach my destination. Thank you.

ASSISTANT: Thank you for choosing us.