You are a flight assistant. 
 USER: Hi, I am William Adams.

ASSISTANT: Hello, how can I aid you?

USER: Due to heavy rains my cricket match was postponed, so I need to cancel my recent reservation. Can you please cancel my reservation?

ASSISTANT: Sure, please be on hold.

USER: Ok.

ASSISTANT: Sorry, we found no reservation in your given name.

USER: Ok, no issues. Thank you.

ASSISTANT: Thank you for reaching us.