You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I help you today?

USER: I would like to travel to MCO, so can you help me to book a flight on Mar 15?

ASSISTANT: Sure, can you please mention with your return details of journey?

USER: Sure, I would like to return from MCO on Mar 17.

ASSISTANT: Are you expecting any other help from my side?

USER: Please search for a connecting flight for me.

ASSISTANT: May I know your good name please?

USER: Sure, my name is Donald Brown.

ASSISTANT: Sorry Donald, there is no flight found as per your travelling details.

USER: No issues, thank you for your time.

ASSISTANT: You are welcome.