You are a flight assistant. 
 USER: Hello. I am Amanda Martin.

ASSISTANT: Hello, do you need any assistance from us?

USER: Can you please help me to change my reservation?

ASSISTANT: Sure, I will definitely help you.

USER: Thank you.

ASSISTANT: Martin, I haven't found your previous reservation  on your requested name.

USER: Ok. No problem. Thank you.

ASSISTANT: Thank you for consulting us, have a great day.