You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I benefit you?

USER: I am Alexander Hill. I want to cancel my recent reservation due to sudden change in my trip. Can you help me?

ASSISTANT: Sure, let me check the status and revert you.

USER: OK.

ASSISTANT: We could not find any reservation by this name.

USER: No issue. Thank you.

ASSISTANT: Thank you for reaching us.