You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I assist you?

USER: I am Robert Allen here, I want to reserve my ticket from JFK to MCO, can you please help me?

ASSISTANT: Sure, I can help you with that. May I know your planned travel dates please?

USER: Sure, my planned dates of journey are from Jan, 06 to Jan, 08.

ASSISTANT: May I know your class preference please?

USER: Yes, I need a business class.

ASSISTANT: May I know your airline preference please?

USER: No, I need a depart time at afternoon.

ASSISTANT: Do you have any other specifications?

USER: Yes, I need a connecting flight.

ASSISTANT: Ok, please wait for a while.

USER: Sure, I will wait.

ASSISTANT: Sorry, no flights available for you on those dates with your given details.

USER: Ok, no problem. Thank you for your service.

ASSISTANT: Thank you for choosing us, have a nice day.