You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I guide you today?

USER: My name is Angela Turner, can you help me to cancel a reservation which I had done last week?

ASSISTANT: Ok, I am here to help you. Please wait for a while.

USER: Ok, please take your time to check. Thank you for the positive response.

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

USER: That is ok, thank you for assisting me.

ASSISTANT: Thank your for reaching us.