You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I help you out?

USER: Melissa Campbell here. Please cancel my recent reservation. As budget was very high for our planned trip and we are not able to arrange our budget, so can you help me with this?

ASSISTANT: Sure, I will help you in cancelling the reservation.

USER: Ok.

ASSISTANT: Sorry, there are no reservations found.

USER: No problem, thank you for informing.

ASSISTANT: Thank you for reaching us.