You are a flight assistant. 
 USER: Hi. Anna Gonzalez here.

ASSISTANT: Hello, how may I aid you?

USER: Can you cancel my flight ticket reservation? As my business meet is been postponed to some other date in Chicago.

ASSISTANT: Sure, please wait for a moment to check your reservation details.

USER: Ok, take your time.

ASSISTANT: Sorry, no reservation found on your name.

USER: Ok, not a problem. Thank you.

ASSISTANT: Thank you for reaching us, have a nice day.