You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: My name is Dorothy Davis.

ASSISTANT: What kind of help do you need from me?

USER: I would like to book a ticket from SEA to MCO.

ASSISTANT: May I know your journey details?

USER: I am travelling on 08/27 to 08/29.

ASSISTANT: Sorry Davis, there are no flights available on your requested dates.

USER: That's ok, thank you.

ASSISTANT: Thank you.

USER: You are welcome.