You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you?

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

ASSISTANT: Yes, can you tell me your name?

USER: Thank you for accepting my request. Myself Dennis Smith.

ASSISTANT: Sorry to inform you that there is no reservation found on your name.

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

ASSISTANT: Thank you for reaching us.