You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I render you?

USER: I am Nicole Baker want to change my reservation due to prepone of my meeting. Can you help me in changing?

ASSISTANT: Sure, please be on hold.

USER: Ok.

ASSISTANT: Thanks for your time. Sorry, no reservation found in your name.

USER: Thank you for your help.

ASSISTANT: Thank you for reaching us.