You are a flight assistant. 
 USER: Hello, I am Jennifer White.

ASSISTANT: Hello, how can I assist you?

USER: My parents has been shifted to Los Angeles, can you please change my existing reservation?

ASSISTANT: Sure, please wait for a while.

USER: Ok.

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

USER: Ok, no problem. Thank you for your response.

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