You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I assist you today?

USER: I need to cancel my recent reservation due to some issues, can you help me in doing that?

ASSISTANT: Sure, will you mention your name for checking the reservation status?

USER: I am Helen Allen.

ASSISTANT: There is no reservation found under your name.

USER: Ok, no issues. Thank you for checking.

ASSISTANT: Welcome, have a great day.