You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you now?

USER: I want to cancel my recent due to some health issue. Can you help me?

ASSISTANT: Sure, can you tell me your name to check with previous booking?

USER: Yes, I am Laura Allen.

ASSISTANT: Give me a moment to check with availability.

USER: Sure.

ASSISTANT: Laura Allen, no reservation was found by your name.

USER: Ok, no problem.

ASSISTANT: Thank you for reaching us.

USER: Thank you for your information.