You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you today?

USER: I want to cancel my recent reservation because of some personal work. Can you please help me out?

ASSISTANT: Sure, I will help you with that.

USER: Thank you.

ASSISTANT: Please tell me your good name.

USER: Sure, my name is Sandra Young.

ASSISTANT: Ok, wait for a while.

USER: Sure, take your time.

ASSISTANT: Sorry Sandra, I did not find any reservation under your name.

USER: Ok, no problem. Thank you for your information.

ASSISTANT: It's my pleasure, have a nice day.