You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I aid you?

USER: Actually, my exams are over, so my friends and me planned a holiday trip to one place, now it was changed. So, please help me to change my existing reservation.

ASSISTANT: Sure, may I know your name?

USER: I am Jonathan Brown.

ASSISTANT: Please let me check the status. I will get back to you within a minute.

USER: Sure.

ASSISTANT: Thanks for your time. There was no reservation found on your specified name.

USER: Thank You for providing information.

ASSISTANT: Thank you for approaching us. Have a good day.