You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you?

USER: Pamela Campbell here.

ASSISTANT: Yes, Campbell.

USER: I would like to cancel my reservation, because I have an urgent meeting on that date, can you please help me out with cancelling of my reservation?

ASSISTANT: Ok, please wait a moment.

USER: Sure, I will wait for your response.

ASSISTANT: Sorry, there is no reservation found with your to cancel the reservation.

USER: Oh, I think my cousin had cancelled my reservation.

ASSISTANT: Thank you for reaching us.

USER: Thank you for the information.