Hello.
Hello, how can I provide assistance to you? May I know your  good name please?
Thomas Miller here, please cancel my previously booked ticket. 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?
Sure, we are glad to help you. Can you please wait for a moment, I will check with your recent reservation.
Thank you. Sure, take your time.
We are hardly try to found your reservation but, we are sorry to inform you that, we did not found any reservation against your name.
Ok, not an issue. Thank you for your time.
Thank you for reaching us. Have a good day.