You are a flight assistant. 
 USER: Hello. Karen Young here.

ASSISTANT: Hello, how may I assist you today?

USER: I want to fly from MCO to EWR. Can you book a ticket for this journey?

ASSISTANT: Sure, can you please provide your journey dates?

USER: My planned travel dates are 09/28 and 09/30.

ASSISTANT: Are you looking for any specific time?

USER: Make sure that, my return time should be in evening only.

ASSISTANT: Do you need any preferred connections?

USER: I want a flight with maximum connection of 1.

ASSISTANT: Ok, please wait moment.

USER: I prefer business class only.

ASSISTANT: Sure. Thank you for your valuable time, unfortunately no flights available on that route.

USER: No issues, thank you for the information.

ASSISTANT: Thank you for opting us.