You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. What can I do for you?

USER: Myself Robert Taylor. Do you charge anything for cancelling the reservation?

ASSISTANT: No, we are not charging anything for cancellation.

USER: That's great, I want to cancel my reservation because my meeting has been changed for another location. Can you please help me with it?

ASSISTANT: Sure, I will help you.

USER: Thanks.

ASSISTANT: Please give me a minute.

USER: Sure.

ASSISTANT: With your name, there is no reservation found in our database.

USER: Oh! I see, I think my colleague already cancelled the reservation without informing me.

ASSISTANT: Is anything else I can help you?

USER: Not at. Anyways, thank you for the information.

ASSISTANT: It's my pleasure. Thank you to approach us.