You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I aid you?

USER: I am Anna Gonzalez.

ASSISTANT: Ok.

USER: I want to reschedule my recent reservation as my plan to visit Lincoln memorial in Washington got postponed. Can you help me?

ASSISTANT: Sure, I will help you. Please wait a moment.

USER: Ok.

ASSISTANT: Sorry, no reservation found with your name.

USER: No issue, thank you.