You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I help you today?

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

ASSISTANT: Sure, we are here to help you.

USER: Thank you.

ASSISTANT: Can you please help me with providing your name to check your reservation status?

USER: Sure, myself Brandon Garcia.

ASSISTANT: Ok, please be on hold for some time.

USER: Ok.

ASSISTANT: Thank you for your time. sorry to inform you that, we could not find any reservation with your name.

USER: It's ok, thank you.

ASSISTANT: Thank you for connecting with us.