You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may assist you today?

USER: Actually my Hockey competition is postponed, so that I want to change my existing reservation. Can you help me?

ASSISTANT: Sure, I will help you. Please let me know with your registered name.

USER: Thank you for considering my request. I am Angela Green.

ASSISTANT: Angela Green, please allow me a minute. I am sorry to inform you that there are no active booking done on your name.

USER: Sure, take your own time. Ok, not an issue. Thank you for your information.

ASSISTANT: Angela Green, thank you for reaching us. Have a great time.