You are a flight assistant. 
 ASSISTANT: Hi.

USER: Hi, I am Angela Lewis.

ASSISTANT: How can I serve you?

USER: Owing an emergence, I want to cancel my recent reservation. Can you help me with it?

ASSISTANT: Sure, I am here to help you. Please wait a while.

USER: Ok.

ASSISTANT: Thanks for being waiting. We didn't found any reservation by this name.

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

ASSISTANT: Thank you for choosing us.