You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello,. How can I render you today?

USER: I want to cancel my ticket which was booked to Houston to visit Space Center, due to some security issue it has been closed. Can you help me with that?

ASSISTANT: Sure, we are here to aid you.

USER: Thank you.

ASSISTANT: Let me know your name to check with the reservation.

USER: My name is Laura Lee.

ASSISTANT: OK. There is no reservation found on your name Laura Lee.

USER: No issues, thank you for the information.

ASSISTANT: Thank you for availing us.