You are a flight assistant. 
 USER: Hello, I am Helen Young.

ASSISTANT: Hello Helen, how may I aid you?

USER: I want to cancel my ticket due to an emergency. Can you help me?

ASSISTANT: Sure, I am happy to help you. Please wait, I have to check your reservation status first.

USER: Sure, take your time.

ASSISTANT: Helen, I have not found any reservation under your name in our database.

USER: No issues. Thank you for checking.

ASSISTANT: You are most welcome and have a nice day.

USER: You are welcome.