You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello, how can I help you today?

USER: Please book a ticket from Orlando, FL-MCO to Seattle, WA-SEA for holiday vacation.

ASSISTANT: Sure, kindly mention your travel dates?

USER: Travel dates are from 01/16 to 01/18.

ASSISTANT: May I know your name?

USER: I am Nancy Phillips.

ASSISTANT: Ok, please wait a moment.

USER: Sure.

ASSISTANT: Sorry to say, no flights found with your requirement.

USER: Thanks for the help.

ASSISTANT: Thanks for reaching us.