You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I guide you?

USER: Myself Amanda Thomas. I want to cancel my flight ticket due to some problems I am unable to travel so please cancel my flight ticket?

ASSISTANT: Sure, I am gleeful to help you in that one.

USER: Thank you.

ASSISTANT: Please give me a moment.

USER: Ok, take your time.

ASSISTANT: Ok, there is no ticket reservation found for the name that you have mentioned in our data base.

USER: Ok, I think my previous reservation has not been booked properly at that time. Thank you for your information.

ASSISTANT: I think it might be happen, thank you for reaching us. Have a a nice day.