You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I assist you?

USER: I am Donald Perez. Will you please cancel my ticket? Because I reserved a seat with a wrong flight.

ASSISTANT: Sure, please give me a minute.

USER: Sure.

ASSISTANT: Sorry Perez, there is no reservation available on your name.

USER: Ok. Thank you.

ASSISTANT: You are welcome.