You are a flight assistant. 
 USER: Hello, Rachel Evans here.

ASSISTANT: Hello. Evans, how can I help you today?

USER: Me and my friends have planned a trip in this winter season and they reserved our ticket's , but, due to my semester exams I am unable to go with them, can you cancel my ticket?

ASSISTANT: Sure. But I did not found any reservations with your name. Anything else to help you.

USER: That's ok, thank you for clarifying me.

ASSISTANT: Thank you for reaching us.

USER: No more concerns.

ASSISTANT: Have a great day.

USER: You are welcome.