You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I best render you?

USER: Can you please cancel your reservation with name Daniel Lewis?

ASSISTANT: Sure, I am here to help you. Just wait for some time.

USER: Sure, I will wait.

ASSISTANT: Thanks for your time. Unfortunately, there is no reservation found on your mentioned name.

USER: Ok, no issues. Thanks for your service.

ASSISTANT: Thanks for reaching us, have a happy day.