You are a flight assistant. 
 USER: Hello. Emma Taylor here.

ASSISTANT: Hello, how can I guide you for today?

USER: I want to change my reservation due to my exams, can you hep me out?

ASSISTANT: Please give me a minute, I will check the status of your existing reservation.

USER: Ok, please check and inform my previous booking status.

ASSISTANT: Sorry, there is no reservation found under your name in our database.

USER: Oh! That's fine, thank you for checking anyways.

ASSISTANT: Thank you for contacting us, have a nice day.

USER: You are most welcome.