You are a flight assistant. 
 USER: Hello, my name is Brenda Edwards.

ASSISTANT: Hello, how can I support you today?

USER: Due to my family get together has been postponed so, I want to change my existing reservation. Can you assist me with that?

ASSISTANT: Sure, we are here to assist you. Please give me a minute.

USER: Sure.

ASSISTANT: Thank you for your time, we are sorry to say that there is no reservation found on your name.

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

ASSISTANT: Thank you for approaching us.