You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello,. How can I amend you today?

USER: I am Deborah Martinez. My business meeting has been postponed so I want to change my existing reservation. Can you please help me with that?

ASSISTANT: Sure, we are here to assist you. Please, wait.

USER: Ok, I will wait.

ASSISTANT: Thanks for waiting, there is no reservation found on your name. Thank you for reaching us.

USER: Ok, no problem. Thanks for your information.