You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you?

USER: I am Cynthia Scott, can you help me to change my reservation? Actually, there is a small change in my trip. Please help me out.

ASSISTANT: Cynthia, I will help you. Let me check your details.

USER: Sure.

ASSISTANT: Cynthia, there is no reservation found under your name.

USER: Oh! that's fine for me. Thank you for your help and support.

ASSISTANT: Thank you for choosing us.