You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you?

USER: Patrick Rodriguez here. I would like to cancel my previous booking, can you please help me?

ASSISTANT: Sure, give me a minute.

USER: Take your time to check.

ASSISTANT: Sorry, there is no reservation found under your name.

USER: Oh! That's fine, thank you for checking.

ASSISTANT: Thank you for reaching us.

USER: Most welcome.