You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Myself. Jonathan Robinson here.

ASSISTANT: How can I help you?

USER: I would like to cancel my recent reservation due to some personal issues, will you help me with that?

ASSISTANT: Jonathan Robinson, let me check your reservation status in our database.

USER: Ok, I will wait for your response.

ASSISTANT: Sorry to inform, no reservation is found with your criteria.

USER: Ok, not an issue. Thank you for your information.

ASSISTANT: Thank you very much for utilising our agency.