You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, How exactly I can serve you the best today?

USER: I have to cancel the recent reservation because the planned trip got cancelled due to some financial issues in the family. Can you please help me to cancel the ticket?

ASSISTANT: Sure, I can help you in that cancelltion. Please allow me a moment to check for the previous reservation in our data base. Before that I need to know your good name please?

USER: Thank you for accepting my request. My name is Rachel Taylor.

ASSISTANT: Ok, please wait for a while.

USER: Ok , take your time.

ASSISTANT: We are sorry to say that, there is no active reservation found on your name.

USER: It's ok, not a problem. Thank you for your help.

ASSISTANT: Thanks for consulting us, have a great day.

USER: Welcome.