You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I assist you?

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

ASSISTANT: Sorry for the inconvenience, let me check your previous reservation on your name.

USER: Ok fine.

ASSISTANT: There is no reservation found on your name.

USER: No issues, thank you for providing details.

ASSISTANT: Thank you for approaching us.

USER: Most welcome.