You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: Myself Rebecca Davis.

ASSISTANT: How can I aid you today?

USER: I would like to cancel my flight reservation as my trip got cancelled. Can you please help me?

ASSISTANT: I am very glad to help you.

USER: Thank you.

ASSISTANT: There is no reservation found under your name in our database.

USER: No problem. Anyway, thank you for checking.

ASSISTANT: Thank you for contacting us.