You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. What help that I can assist you?

USER: I am planning to cancel my recent reservation. Can you please help me for this?

ASSISTANT: Sure, I can help you and can I know your name please?

USER: Myself Donna Baker.

ASSISTANT: Please give me a moment.

USER: Sure, I will wait for your response.

ASSISTANT:  Thank you for waiting, I have checked in reservation list to cancel your ticket but could not find any reservation with your name.

USER: Not a big problem, anyhow thank you very much for your kind information.

ASSISTANT: You are most welcome and have a nice day.