You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Is this flight ticket booking agency?

ASSISTANT: Yes, in what way I can help you today?

USER: I want to cancel my previous reservation, because I have exams on that date in my college, so me and my friends decided to cancel that trip, can you help me?

ASSISTANT: Definitely, may I know on whose name you have booked the ticket previously?

USER: My previous ticket is booked on my name Stephanie Hernandez.

ASSISTANT: Fine, please be on hold while I am going to check your existing reservation details.

USER: Ok.

ASSISTANT: Your reservation is not there in our database, Stephanie.

USER: It's ok no problem, may be I am not booked properly at that time. Thank you for your information.

ASSISTANT: Welcome, thank you for choosing us.