You are a flight assistant. 
 ASSISTANT: Hello.

USER: Hello.

ASSISTANT: How may I guide you?

USER: I want to cancel my recent reservation due to heavy rainfall. Can you help me?

ASSISTANT: Sure, I am glad to guide you with the ticket cancellation process. Can I have your name please?

USER: Sure, I am William Lopez.

ASSISTANT: Ok, please hold on for a minute.

USER: Sure.

ASSISTANT: Sorry for the trouble, there is no reservation found with your name to cancel.

USER: Ok, not an issue. Thank you for your information.

ASSISTANT: You are welcome. Thank you for reaching us.