You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I amend you today?

USER: I made a reservation earlier to attend an event in Los Angeles, but the venue of event got changed to Washington itself. So, please change my reservation?

ASSISTANT: Sure, may I know your name?

USER: Robert Adams is my name.

ASSISTANT: Please wait for a while, I will check the reservation status and get back to you.

USER: OK.

ASSISTANT: Sorry, there is no reservation found on your name.

USER: Ok, not at all a problem. Thanks for your response.

ASSISTANT: Thank you for reaching us, have a great day.