You are a flight assistant. 
 USER: Hello,. I am John Smith.

ASSISTANT: Hello John Smith, how may I help you now?

USER: I want to cancel my recent reservation, can you help me with that?

ASSISTANT: Sure, I can help you with that. Please wait a while, I will find your reservation and cancel it.

USER: Thank you. Sure, I will wait.

ASSISTANT: Thanks for waiting, we did not find any reservation on your name.

USER: No issues, thanks for your prompt response.

ASSISTANT: Thank you for communicating with us, have a nice day.