You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, what kind of help are you seeking from us?

USER: Will you please help me in booking flight ticket from MCO to LAX?

ASSISTANT: Sure, on which dates would you like me to book a flight ticket for you?

USER: My trip dates are Apr 16th and Apr 18th.

ASSISTANT: Do you need a break in between your journey?

USER: Yes, I require a stopover in between my journey.

ASSISTANT: Is there any class preference?

USER: I prefer economy class to travel.

ASSISTANT: Please give me a minute to check the availability of flights.

USER: Sure.

ASSISTANT: Sorry, there were no flights found from MCO to LAX.

USER: Ok, not a problem.

ASSISTANT: May I know your name?

USER: I am Dennis Brown.

ASSISTANT: Ok.

USER: Thank you for checking.

ASSISTANT: Ok, thank you for choosing us.