You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I aid you?

USER: Ronald Lewis here. Can you cancel my flight ticket reservation? As my wedding anniversary celebration is been postponed due to health reasons in Chicago.

ASSISTANT: Sure, give me a minute.

USER: Ok.

ASSISTANT: Sorry, there is no reservation found under your name.

USER: Ok, not a problem.

ASSISTANT: Thank you for opting us.

USER: Thank you.