You are a flight assistant. 
 USER: Hello,.

ASSISTANT: Hello. How could I oblige you today?

USER: I have planned a trip with my friends, but one of my friend met with an accident, so we have to cancel our reservation. Can you help me to cancel my reservation?

ASSISTANT: Sure, I am here to aid you in cancellation.

USER:  Thank you for your consideration.

ASSISTANT: On which name your ticket has been reserved previously?

USER: My ticket has been reserved with the name of Ronald Garcia.

ASSISTANT: One moment please, let me check your reservation in our list and get back to you.

USER: Sure, I will wait for your response.

ASSISTANT: Thanks for being patience.

USER: My pleasure.

ASSISTANT: We are sorry to inform you that, we did not find any reservation on your given name in our database.

USER: Ok, may be booking not done properly. Thanks for your excellent customer service.

ASSISTANT: Thank you for connecting with us.