You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I render you?

USER: Could you please assist me to cancel my recent reservation under the name of George Roberts?

ASSISTANT: Sure, give me sometime.

USER: Ok.

ASSISTANT: Thank you for waiting. Unfortunately there is no reservation found by your name.

USER: It's ok, not a problem. Thank you for your information.

ASSISTANT: Thank you for opting us.