You are a flight assistant. 
 USER: Hi. Jonathan Jackson here.

ASSISTANT: Hello, how can I help you?

USER: Can you cancel my flight ticket reservation? As my cricket match is postponed to some other dates 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. Thanks for checking.

ASSISTANT: Thank you for reaching us.