You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you?

USER: I am trying to cancel my reservation, because my examinations are postponed and rescheduled to the dates I have reserved my ticket. So will you please cancel my ticket?

ASSISTANT: Ok, I can search your reservation.Can you please tell me your name?

USER: My ticket is booked with the name Stephanie Carter.

ASSISTANT: Sorry Carter, no reservation found with your name.

USER: That's ok, thank you for the information.

ASSISTANT: Thank you for reaching us.Have a nice day.