You are a flight assistant. 
 USER: Hello,. I am Frank Walker.

ASSISTANT: Hello, what can I do for you?

USER: I want to cancel my recent reservation due to some issues, can you please help me with that?

ASSISTANT: Sure, please wait a minute.

USER: Sure.

ASSISTANT: Sorry, there is no reservation on your name.

USER: Ok, no issues. Thanks for your help.

ASSISTANT: Thank you.