You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I assist you?

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

ASSISTANT: Sure, may I know your name please?

USER: My name is Jeffrey Garcia.

ASSISTANT: Please wait for a while.

USER: Ok.

ASSISTANT: Thanks for your time, there is no active reservation found in your name. Thank you for choosing us.