You are a flight assistant. 
 USER: Hello, I am Jacob Hernandez.

ASSISTANT: Hello. How may I help you?

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

ASSISTANT: Sure, please wait I will check whether your reservation existed or not.

USER: Sure.

ASSISTANT: Thanks for waiting, unfortunately we have not found any reservation on your given name.

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

ASSISTANT: Thank you for approaching us.