You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I assist you at this moment?

USER: Myself Karen Hill, can you help me to cancel my reservation I did recently?

ASSISTANT: Sure Hill, I will help you with that.

USER: Ok, thank you.

ASSISTANT: Please wait a moment to check your reservation status.

USER: Ok, I will wait for your response.

ASSISTANT: Sorry Karen Hill, no reservation has found under your name to cancel.

USER: That's ok, may be my brother had cancelled. Thank you for the information.

ASSISTANT: My pleasure. Thank you for choosing us, have a good day.