You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: Mark Evans here.

ASSISTANT: How may I help you?

USER: Please cancel my flight ticket as the destination was wrongly mentioned on the ticket.

ASSISTANT: Sure, I will help you with that. Please hold on a moment.

USER: Let me know once you check the details.

ASSISTANT: I am sorry to say that there is no reservation found on your name.

USER: It is ok not a problem.

ASSISTANT: Thank you for contacting us.