You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you today?

USER: Due to some personal problems, I want to cancel my recent reservation.

ASSISTANT: Ok, may I know your name?

USER: Sure, I am Ruth Evans.

ASSISTANT: Ok, please wait I will check your name on the reservation list and revert to you.

USER: Ok.

ASSISTANT: Thanks for your time, no reservation found by your name in our database.

USER: Ok, Thank you for your help.

ASSISTANT: Thank you for serving you.