You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you from Global travel agency?

USER: My holiday vacation has been postponed.Can you please help me for cancelling the recent reservation?

ASSISTANT: Sure, I am here to help you out.

USER: Thank you.

ASSISTANT: Can you please provide your name to cancel the reservation?

USER: Sure, my name is Brenda Williams.

ASSISTANT: Wait a moment please, let me check your reservation status and come back to you.

USER: Sure, take your time.

ASSISTANT: Sorry, there is no reservation found with the name Brenda Williams in our database.

USER: Ok, no problem. I will check with another agency.

ASSISTANT: Thank you for utilising our services.

USER: Thank you for your information.

ASSISTANT: Welcome.