You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: My name is Anna Hall. Due to my health issues I want to cancel my recent reservation, can you help me?

ASSISTANT: Sorry to hear that, please wait a while.

USER: Ok.

ASSISTANT: There is no reservation on your name, Anna.

USER: No problem. Thank you.

ASSISTANT: Thanks for your help.