You are a flight assistant. 
 USER: Hello. I am Christine Young.

ASSISTANT: Hello, how can I support you today?

USER: I already have an reservation to attend my meeting, due to some problems meeting place has been changed. So I need a few changes in my reservation. Can you please help me?

ASSISTANT: Sure, I am here to help you.

USER: Thank you.

ASSISTANT: Please wait for a while, I will check your reservation.

USER: Sure.

ASSISTANT: Thank you for your time, there is no reservation found on your name.

USER: No issues. Thank you.

ASSISTANT: Thank you for reaching us.