You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello. How can I assist you today?

USER: I am Debra Campbell. Can you please cancel my reservation, due to cancel of my trip with colleagues?

ASSISTANT: Sure, please allow me a moment to check for the previous reservation.

USER: Sure.

ASSISTANT: Debra Campbell, I found your reservation and successfully cancelled your reservation.

USER: Ok, thank you for cancelling my ticket.

ASSISTANT: You are welcome. Thank you for reaching us.