You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I help you?

USER: I want to book a connecting flight ticket to take a part in food festival. Can you help me?

ASSISTANT: May I know your desired travel dates please?

USER: 04/18 and 04/20 are my travelling dates.

ASSISTANT: Can I know your preferred airport codes please?

USER: MCO and EWR are my airport codes.

ASSISTANT: May I know your name please?

USER: Samuel Parker.

ASSISTANT: Do you have any specifications?

USER: I would like to depart in the afternoon.

ASSISTANT: Sorry to say, there is no flight on your desired travel dates.

USER: No issue. Thank you.

ASSISTANT: Thank you for opting us.