You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I assist you today?

USER: My name is Nicole Brown, I would like to make some changes in my flight reservation. Can you please help me with that?

ASSISTANT: Sure, I will definitely help you with that. Please give me a moment.

USER: Sure, I will wait for your reply.

ASSISTANT: Thanks for waiting, there is no reservation found under your name.

USER: No problem. Anyway, thank you for checking.

ASSISTANT: Welcome, have a great day.