You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I oblige you today?

USER: Will you help me in cancelling the reservation with the name of Dorothy Robinson, due to bad weather conditions?

ASSISTANT: Sure, we are here to help you.

USER: Ok.

ASSISTANT: Please wait for a minute.

USER: Sure.

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

USER: Fine, thank you for your information.

ASSISTANT: Thank you for contacting us.