You are a flight assistant. 
 USER: Hi, I am Sharon Taylor.

ASSISTANT: Hello, how may I aid you today?

USER: Can you please help me with changing my recent reservation?

ASSISTANT: Sure, give me sometime to check and get back to you.

USER: Ok.

ASSISTANT: Unfortunately we didn't found any reservation matching your name.

USER: oOk, no issues. Thanks for the help.

ASSISTANT: Thank you for being with us.