You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you?

USER: I am trying to cancel my past ticket because my trip got cancelled. Will you please help me to cancel the ticket?

ASSISTANT: Sure, I will help you in cancelling the reservation.

USER: Thank you for accepting my request.

ASSISTANT: May I Know your name please?

USER: My name is Anna Gonzalez. It.

ASSISTANT: Sorry, there are no reservations under your name.

USER: It's ok, not a problem. Thank you for checking the ticket status.

ASSISTANT: Thank you for reaching us.

USER: You are welcome.