You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I aid you?

USER:  I want to cancel my recent reservation which I have done last week because my trip got cancelled. Please help me out with that.

ASSISTANT: Sure, please mention your name to check your reservation details in our database.

USER: Myself Margaret Miller.

ASSISTANT: Thank you, please wait for a while.

USER: Sure.

ASSISTANT: We found your reservation details and we have cancelled it.

USER: Thank you so much.

ASSISTANT: Thank you for reaching us.