You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you out?

USER: Myself Deborah Allen. I need to cancel my recent reservation, as my trip with my friends got canceled. Can you please help me out?

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

USER: Thank you for considering my request.

ASSISTANT: Sorry, there are no reservations found in our database.

USER: Not a big problem. Anyway thank you for the information.

ASSISTANT: Thank you for choosing us.

USER: Thank you for your service.