You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I aid you?

USER: I would like to attend a family function at LGA, can you please help me in reserving a flight ticket from MCO?

ASSISTANT: Sure, provide me your travelling dates?

USER: I need to start on Jun 28 and need to return on Jun 30.

ASSISTANT: Ok, do you have any class preference?

USER: I am comfortable to travel in business class.

ASSISTANT: Ok,any connection flights do you required?

USER: Yes, I need a connecting flight.

ASSISTANT: Any other specifications do you required?

USER: No.

ASSISTANT: For further proceeding, provide me you name?

USER: I am Jack Walker.

ASSISTANT: Ok, please wait a moment.

USER: Ok.

ASSISTANT: Sorry, we don't find any flight in airline database according to your specifications.

USER: Ok, I will try with another alternative.

ASSISTANT: Thanks for approaching us.

USER: Thank you for checking.