You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you?

USER: Due to some personal issue, I would like to cancel my recent reservation which has been reserved with the name Patrick Smith. Can you help me with this?

ASSISTANT: Ok Patrick, please give me a minute.

USER: Sure, take your own time.

ASSISTANT: Smith, there is no reservation found with your details.

USER: That's fine, anyways thank you.

ASSISTANT: Thank you for contacting us.