You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I help you?

USER: As my exam got cancelled, can you help me to cancel my recent reservation?

ASSISTANT: Sure, I  am here to help you. Can you please let me know your name for checking your ticket status?

USER: Sure, my name is Stephanie Carter.

ASSISTANT: I am very sorry for the information, there is no reservation found with your name in our database.

USER: That's ok, thank you for checking.

ASSISTANT: You are welcome. Thank you for reaching us.