You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: I am Linda Anderson. I just want to cancel my ticket, because my planning got cancelled. Can you help me out?

ASSISTANT: Ok Linda, please wait I will get you back.

USER: Ok.

ASSISTANT: There is no reservation found for you, Linda.

USER: Oh! that's fine. Thank you for your help.

ASSISTANT: Thank you for choosing us.