You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you?

USER: Nicolas Lopez here.

ASSISTANT: Nice to meet you Lopez.

USER: Can you help me in ticket cancellation?

ASSISTANT: Sure.

USER: Thanks.

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

USER: Oh! That's fine, no issues.

ASSISTANT: Thank you to approach us.

USER: Most welcome.