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

ASSISTANT: Hello, how may I assist you today?

USER: Owing an emergency want to change my reservation, can you help me with it ?

ASSISTANT: Sure, please wait for a while.

USER: Ok.

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

USER: That's ok.

ASSISTANT: Thank you for reaching us.

USER: Thank you for the information.