You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you today?

USER: I am Richard Carter. Can you please help me in making an airline reservation from MCO to SFO?

ASSISTANT: Sure, I will help you in booking the ticket. May I know your travelling dates too?

USER: My travelling dates are Dec 13th and Dec 15th.

ASSISTANT: Do you need any requirements?

USER: The depart time should be evening. I need a connecting flight.

ASSISTANT: Sorry, there are no flights found.

USER: Ok, not an issue. Thank you.

ASSISTANT: Thank you for reaching us.