You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, How can I be of your assistance today?

USER: Will you please cancel my ticket? Due to ill heath I could not travel.

ASSISTANT: Sure, we are here to help you.

USER: Thank you, I am Samuel Roberts.

ASSISTANT: Ok, please wait for a minute.

USER: Sure.

ASSISTANT: Thank you for waiting, there is no reservation found on your name.

USER: Ok, Thank you.

ASSISTANT: Thank you for reaching us.