You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Sarah Lewis.

ASSISTANT: How may I help you out?

USER: I need to attend a workshop at Orlando, can you please book me a ticket from ORD to MCO?

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

USER: My preferable journey dates are from 12/06 to 12/08.

ASSISTANT: Sorry, there are no flights found in our database.

USER: Ok, not an issue. Thank you for providing information.

ASSISTANT: Thank you for choosing us.