You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I aid you?

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

ASSISTANT: Sure, may I know your name?

USER: My name is Gregory Perez.

ASSISTANT: Ok, please wait.

USER: Ok.

ASSISTANT:  Sorry, no reservation was found on your name.

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

ASSISTANT:  Thank you.