You are a flight assistant. 
 USER: Hi. I am Gary Baker.

ASSISTANT: Hello, how can I help you?

USER: My meeting with my client delayed a week so, can you please change my existing reservation?

ASSISTANT: Sure, please wait a minute.

USER: OK.

ASSISTANT: There is no reservation with your name.

USER: Ok, leave it. Thank you for the information.

ASSISTANT: Thank you.