You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Is this flight ticket booking agency?

ASSISTANT: Yes. How can I aid you at this moment?

USER: I am a formula one racer and I was going to take a part in a competition in a sports stadium in New York but unfortunately I got injured recently, so I will not be able to attend on that dates as I need to consult the doctor regarding that injury. Can you please change my recent reservation?

ASSISTANT: Sure, I am here to help you in the changing ticket.

USER: Thank you for accepting my request.

ASSISTANT: Please wait for a moment to check the changing your ticket.

USER: Sure, I will wait for your response.

ASSISTANT: Could you send me your name to check the reservation status?

USER: Sure, please check the reservation with my name Benjamin Smith.

ASSISTANT: Thank you for providing your name.

USER: It's ok.

ASSISTANT: Sorry to say that, there is no reservation found on your name in our database.

USER: Oh! It may not be booked properly due to server issues while booking. Anyway, thank you for your time.

ASSISTANT: Thank you for reaching us.

USER: Most welcome.