You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you today?

USER: Can you modify my reservation?

ASSISTANT: Sure, will you provide the name for checking reservation?

USER: Myself Jonathan Brown.

ASSISTANT: Please give me a moment.

USER: Ok.

ASSISTANT: Thank you for waiting, there is no reservation found under your name.

USER: That's ok, no issues. Thank you for your help.

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