You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: My name is Andrew Collins.

ASSISTANT: How may I help you?

USER: I would like to travel from SEA to MCO, could you help me out?

ASSISTANT: Sure, please tell your travel dates.

USER: My preferable dates are from 09/12 to 09/14.

ASSISTANT: Sorry, there are no flights available.

USER: That's ok. Thank you, have a good day.

ASSISTANT: Thank you for reaching us.