You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I help you?

USER: Due to bad weather conditions, I want to change my existing reservation. Can you help me out?

ASSISTANT: Sure, I am here to help you. Can you help me with your name?

USER: Sure, my name is Amanda Campbell.

ASSISTANT: Sorry, there is no reservation found on your name.

USER: That's ok, thank you.

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