You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello, how can I serve you?

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

ASSISTANT: Sure. Can you please share your name?

USER: My name is Lisa Parker.

ASSISTANT: Thanks for the information. Please wait for a moment.

USER: Sure.

ASSISTANT: Unfortunately, we did not found any reservation on your name.

USER: Ok, no issues.

ASSISTANT: Thanks for choosing us.

USER: Thanks for the help.