You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I assist you today?

USER: I need to cancel my ticket due to my health issue, can you help me with that?

ASSISTANT: Sure, may I know your name to proceed further?

USER: I am Betty Turner.

ASSISTANT: There is no reservation found under your name.

USER: That's ok. Thank you.

ASSISTANT: Thank you for contacting us.