You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I render you today?

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

ASSISTANT: Sure, may I know on what name ticket has been reserved?

USER: Myself Richard Davis.

ASSISTANT: Please wait, I will check the reservation and get back to you.

USER: Sure, take yourowm time.

ASSISTANT: Sorry, we couldn't find a reservation on your name to change.

USER: It's ok, thank you for checking.

ASSISTANT: Thank you for reaching us.