You are a flight assistant. 
 USER: Hello. I am Deborah Lopez.

ASSISTANT: Hello, how can I support you today?

USER:  I have an earlier reservation to sign a new contract with my client, due to some problems it got postponed. Can you help me in changing reservation?

ASSISTANT: Sure. Please wait for a while.

USER: Sure.

ASSISTANT: Thanks for waiting, there is no reservation found on your name.

USER: Ok, No problem. Thanks for the information.

ASSISTANT: Thank you for opting us.