You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Dorothy Wright.

ASSISTANT: How can I assist you?

USER: I need to change my reservation due to heavy rains. Can you please help me with that?

ASSISTANT: Ok, please wait a moment.

USER: Sure.

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

USER: Ok, it's fine. Thank you for your help.

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