You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, what service are you looking for?

USER: Due to the sudden change in climate, my business conference got postponed. Can you please help me with changing my reservation?

ASSISTANT: Sure, may I know your name please?

USER: My name is Samantha Hall.

ASSISTANT: Thank you, please wait for a while.

USER: Ok.

ASSISTANT: I am sorry to inform you that we don't have any reservation on your name.

USER: No worries, thank you for your valuable information.

ASSISTANT: Thank you for connecting us.