You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you?

USER: I am Frank Hill. Help me in booking my flight ticket from SEA to MCO, help me in booking my flight ticket.

ASSISTANT: Ok, may I know your travelling dates?

USER: My starting date is Aug 23. My return date will be Aug 25.

ASSISTANT: Ok, please wait. Sorry, no flights found on your route.

USER: Its ok, thank you.

ASSISTANT: Most welcome.