You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: Myself Paul Jones.

ASSISTANT: How may I assist you?

USER: Can you please cancel my reservation, as I have done a mistake in booking my ticket.

ASSISTANT: Sure, Please wait for a minute.

USER: Ok.

ASSISTANT: I cannot find any reservation with your name.

USER: Thank you so much for your information.

ASSISTANT: Welcome.