You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I oblige you today?

USER: I want to cancel my recent reservation  due to office work that my manager did not approve my leaves. Could you please help me in cancelling my reservation?

ASSISTANT: Sure, I am here to help you.

USER: Thank you.

ASSISTANT: It would be helpful to me if you please share me your name to check the reservation status?

USER: Please cancel the reservation on the name Gregory Johnson.

ASSISTANT: Thank you for providing your name. One moment please, I will check the reservation status and revert to you.

USER: Sure, I will wait for your reply.

ASSISTANT: Thanks for giving your valuable time for us. We are hardly tried to find your reservation, but there is no reservation found with your given name in our data base.

USER: Ok, no issues. Thank you for providing information.

ASSISTANT: Thank you for connecting with us.