You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Linda Thomas.

ASSISTANT: How may I be your helping hand at this moment?

USER: Assist me to cancel my reservation as my exams was got cancelled.

ASSISTANT: Ok, I will assist you.

USER: Thank you.

ASSISTANT: Thanks for being patience. I checked the reservation list, but in that there was no reservation with your name to cancel.

USER: Ok, no problem.

ASSISTANT: Thank you for approaching us.

USER: Thank you so much.