You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I address you today?

USER: I want to cancel my recent reservation owing to an emergency.

ASSISTANT: Sure, may I know your name to check the reservation list?

USER: My name is Gary Lee.

ASSISTANT: Ok, please wait a minute I will get back to you with the present status.

USER: Sure.

ASSISTANT: Thank you for being patient, sorry to inform no reservation found on your name.

USER: Thank you.