You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I serve you today?

USER: I am Amanda Perez.

ASSISTANT: Ok.

USER: ave an earlier reservation to sign a new contract with my client, due to some problems it got postponed. Can you please change my reservation?

ASSISTANT: Please wait for a while, I will check and get back to you.

USER: Ok.

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

USER: Ok, no problem. Thank you.

ASSISTANT: Thank you for choosing us.