You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you today?

USER: My business meeting has been postponed, could you please help me with changing my recent reservation?

ASSISTANT: Yes, I can help you with that. May I know your name please?

USER: I am Thomas Walker.

ASSISTANT: Please give me a minute, I will find your existing reservation.

USER: Sure.

ASSISTANT: Sorry, there is no reservation found under your name.

USER: That's ok, no issues. Thank you for the information.

ASSISTANT: Thank you for reaching us.