You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: Myself Jeffrey Johnson. Can you please help me with changing my reservation?

ASSISTANT: Sure, I'll help you in that. Please be on hold.

USER: Sure, take your time.

ASSISTANT: There is no reservation found under your name to do changes is that.

USER: It's ok fine, no problem. Anyway, thank you for your time.

ASSISTANT: Thank you for choosing us.