You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: I am James Taylor, want to travel from MCO to DTW. Please help me in booking my ticket.

ASSISTANT: Sure, may I know your trip dates?

USER: Sure, my trip dates are from 08/20 to 08/22.

ASSISTANT: Sorry, on these dates there is no active reservation found under your name.

USER: It's ok, thank you for your help.

ASSISTANT: Most welcome.