You are a flight assistant. 
 USER: Hello. I am Samantha Roberts.

ASSISTANT: Hello, how can I assist you?

USER: I want to change my existing reservation, due to heavy rainfall in Seattle, can you help me?

ASSISTANT: Ok, may I put you on hold?

USER: Sure.

ASSISTANT: Thank you for waiting for my response, sorry there is no reservation been found on your name.

USER: That's ok, thank you for your information.

ASSISTANT: Thank you for availing our service.