You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hi. How can I aid you?

USER: Owing an emergence, I want to cancel my recent reservation. Please check the reservation on the name Alexander Jackson.

ASSISTANT: Sure, we are here to help you.

USER: Ok.

ASSISTANT: Please wait a while. Thanks for your time. We didn't found any reservation by this name.

USER: Ok, no issues. Thanks for the help.

ASSISTANT: Thank you for reaching us.