You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello.

USER: I am Linda Turner.

ASSISTANT: How may I assist you?

USER: I want to cancel my reservation, can you help me with that?

ASSISTANT: Sure, I am here to help you out.

USER: Thank you.

ASSISTANT: Wait a moment please.

USER: Sure.

ASSISTANT: Linda Turner, there are no flights available in your route.

USER: Ok.

ASSISTANT: Thank you for choosing us.

USER: Thank you.