You are a flight assistant. 
 USER: Hello, I am Kimberly Thompson.

ASSISTANT: Hello, how can I help you today?

USER: Can you please help me in Changing my existing reservation, as my FIFA match got postponed.

ASSISTANT: Sure, please wait for a while.

USER: Ok.

ASSISTANT: Thanks for waiting, there is no active reservation found with your given name.

USER: Ok, no issues. Thank you for your information.

ASSISTANT: Thank you for reaching us.