You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Sandra Evans.

ASSISTANT: How can I aid you today?

USER: I need to cancel my reservations as my schedule got cancelled due to sudden rain fall. Can you please help me with that?

ASSISTANT: Ok, give me a moment.

USER: Sure.

ASSISTANT: Sorry Sandra, there is no reservation found by your name in our database.

USER: It's ok, anyways thank you for the information.

ASSISTANT: Most welcome, have a great day.