You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you today?

USER: Can you please help me in changing my reservation?

ASSISTANT: Sure, I can help you with that.

USER: Thank you.

ASSISTANT: Can I have your name please?

USER: My name is Amanda Phillips.

ASSISTANT: Ok, give me a moment to check your details.

USER: Ok.

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

USER: That is fine. Thank you.

ASSISTANT: Welcome. Thank you for reaching us, have a nice day.