You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I help you?

USER: I made an earlier reservation to attend a political event due to security issues it got postponed. Can you please help me in changing my reservation?

ASSISTANT: Sure, I will help you.

USER: Thank you.

ASSISTANT: Can I know your name please?

USER: My name is Cynthia Edwards.

ASSISTANT: Sorry to say, there is no reservation on your name in our database.

USER: Ok, not a problem. Thank you for your information.

ASSISTANT: Thank you for opting us.