You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I guide you?

USER: Please cancel my reservation, that I made earlier to attend a seminar.

ASSISTANT: Sure, on which name you wants me to check your details?

USER: I am Brenda King.

ASSISTANT: Ok, just wait a moment.

USER: Sure.

ASSISTANT: Brenda King, there is no reservation exist on your name to cancel.

USER: Ok, no issue. Thank you for your response.

ASSISTANT: Thank you for consulting us.