You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you today?

USER: I want to cancel my ticket booking due to issues in my home town, can you help me?

ASSISTANT: Sure, I will help you.

USER: Thank you.

ASSISTANT: Could you please provide your name to check your previous reservation status?

USER: I am Mary Jackson.

ASSISTANT: Ok Mary, please wait.

USER: Sure.

ASSISTANT: Sorry to inform you that, there is no reservation found with your name in our records.

USER: Ok, that's fine, thank you for your information.

ASSISTANT: Thank you for reaching us, have a great day.

USER: Welcome.