You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: Owing to an emergency, I want to cancel my recent reservation. Can you help me in that?

ASSISTANT: Sure, I will help you.

USER: Thank you.

ASSISTANT: May I know your name please?

USER: Myself Jack Baker.

ASSISTANT: Please wait.

USER: Ok.

ASSISTANT: Sorry, there is no active reservation found with your name to cancel.

USER:  Ok, thank you.

ASSISTANT: Most welcome.