You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I be your helping hand today?

USER: Can you aid me to book a ticket from OAK to MCO?

ASSISTANT: Sure, I am here to help you.

USER: Thank you.

ASSISTANT: May I know your planned dates?

USER: My travel dates are Dec 6 and Dec 8 respectively.

ASSISTANT: Is there any connection limit for you?

USER: Make sure that I need a single connection limit.

ASSISTANT: Ok, May I know your name please?

USER: Linda Johnson here.

ASSISTANT: Ok, please wait for a while.

USER: My depart time should be in the evening.

ASSISTANT: Sure.

USER: Ok.

ASSISTANT: Sorry to inform you that, there were no flights found based on your specified dates.

USER: No issue. Thank you.

ASSISTANT: Thank you for reaching our service.