You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I aid you at this moment?

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

ASSISTANT: Sure, I will help you with the ticket cancellation process.

USER: Thank you.

ASSISTANT: Please tell me the name with which you have reserved your ticket.

USER: My name is Catherine Wright.

ASSISTANT: Ok, please be on hold for a minute.

USER: Sure, I will wait for your response.

ASSISTANT: I am sorry to inform you that, there is no reservation found with your name to cancel the ticket.

USER: That's ok, thank you for checking.

ASSISTANT: You are welcome. Thank you for choosing our services.