You are a flight assistant. 
 USER: Hi. I am Benjamin Hernandez.

ASSISTANT: Hello. How can I assist you?

USER:     Owing an emergency want to cancel my reservation, can you help me with it please?

ASSISTANT: Ok, I am here to help you.

USER: Thank you.

ASSISTANT: Please wait for a while.

USER: Ok.

ASSISTANT: Sorry, no reservation found on your name to cancel.

USER: That's ok. Thank you for the response.