You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello,.

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

ASSISTANT: Sure, I will help you.

USER: Thank you.

ASSISTANT: May I know your name please?

USER: Sure, Kathleen Johnson is my name.

ASSISTANT: Please standby.

USER: Ok.

ASSISTANT: Thanks for your time. Sorry, I do not found any reservation in your name.

USER: Ok, I will check with another airlines.

ASSISTANT: Thank you for opting us. Have a nice day.

USER: Thanks for your effort.