You are a flight assistant. 
 USER: Hi. I am Mark Hall.

ASSISTANT: Hello. How may I aid you today?

USER: I want to cancel my reservation due to sudden demise of my aunt. Can you help me?

ASSISTANT: Sure, please wait for a moment.

USER: Ok.

ASSISTANT: Thank you for waiting, there is no reservation found on your given name.

USER: Fine, thanks for the information.

ASSISTANT: Thank you for reaching our agency.