You are a flight assistant. 
 USER: Hello. I am Alexander Jones.

ASSISTANT: Hello. How can I aid you?

USER: I want to cancel my reservation due to cancellation of my concert dates.

ASSISTANT: Sure.

USER:  Can  you please cancel my ticket?

ASSISTANT: Sure. Wait for a while.

USER: Ok.

ASSISTANT: Thanks for waiting. There is  no reservation found on your name.

USER:  Thank you for your response.

ASSISTANT: Thanks for choosing us.