You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I serve you now?

USER: I have done my reservation last week for my exams in Denver city but due to some technical issue in that university they have changed my exam destination to Boston. Can you please help me to change my reservation?

ASSISTANT: Sure, I will help you to change your reservation.

USER: Thank you for considering my request.

ASSISTANT: May I know your name?

USER: Sure, my name is Eric Brown.

ASSISTANT: Please wait for a moment, while I check for the reservation.

USER: Sure, I will wait for your response.

ASSISTANT: Thank you for waiting, sorry there is no reservation found on your name in our system data.

USER: No worries, it might not booked properly at the time of booking. Anyways thank you for the information.

ASSISTANT: Thank you for reaching us, we hope see you again.