You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I guide you for today?

USER: I am frustrated with your service because your agent has booked a ticket on wrong date, so I want to cancel my reservation.

ASSISTANT: Can you please share your name to check whether your reservation is existed or not?

USER: My name is Nancy Scott.

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

USER: That's ok, no issues.

ASSISTANT: Thank you for approaching us.

USER: Most welcome.