You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I help you?

USER: I want to cancel my recent reservation due to heavy rainfall at my destination place. Can you please help me?

ASSISTANT: Sure, may I know your name please?

USER: My name is Sarah Walker.

ASSISTANT: Ok, please wait a minute.

USER: Sure.

ASSISTANT: Sorry Sarah, there is no reservation found under your name in our records.

USER: Ok, not an issue. Thanks for your information.

ASSISTANT: Most welcome.