You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I assist you?

USER: Unfortunately, I would like to cancel my reservation which is done recently, can you please help me in this condition?

ASSISTANT: Sure, may I know your name to cancel your ticket?

USER: Sure, my name is George Johnson.

ASSISTANT: Please give me a moment to check your ticket status.

USER: Sure, take your time.

ASSISTANT: Sorry George, no reservation is available by your name.

USER: That's ok, anyways thank you for your service.

ASSISTANT: Thank you for contacting us.