You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I'm Sharon carter.

ASSISTANT: How can I help you?

USER: Co incidentally , I have booked wrong tickets. Can you please cancel my recent reservation?

ASSISTANT: OK,give me a minute?

USER: Sure.

ASSISTANT: Sorry to say that there is no reservation found.

USER: It's OK.

ASSISTANT: Thank you for contacting me.

USER: Thank you for your information.