You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I assist you today?

USER: I am Edward Moore.

ASSISTANT: Very nice to meet you Moore.

USER: Since my meeting got postpone, I want to change my existing reservation. Please help me with that.

ASSISTANT: Sure, please wait for a minute to check the details of reservation.

USER: Sure.

ASSISTANT: Thanks for your patience, I cannot find any reservation with your name.

USER: That's ok, thanks for your service.

ASSISTANT: It's my pleasure, thank you.