You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you today?

USER: I am Janet King, my plan is to attend a international trade fair on 09/27. Help me to find a flight from Boston, MA-BOS.

ASSISTANT: Sure, may I know your compete journey details?

USER: My destination is Charlotte,NC-CLT. I will return on 09/29.

ASSISTANT: Ok, please wait for a moment, I will check and get back to you.

USER: Sure.

ASSISTANT: Thanks for waiting. Sorry, no flights found with your given details.

USER: Ok. Thanks for the information.

ASSISTANT: Thank you for choosing us.