You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello,how can I assist you today?

USER: Owing to an emergency, I want to cancel my reservation. Can you help me out?

ASSISTANT: Sure, may I know your name please?

USER: Yes, my name is Ruth Martinez.

ASSISTANT: Please wait a moment.

USER: OK.

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

USER: OK, thank you.

ASSISTANT: Thank you for contacting us.