You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Due to some issues I need to cancel my reservation. Can you help me out?

ASSISTANT: What can I do for you today? Sure, on name can I find your reservation?

USER: Myself Brenda Garcia.

ASSISTANT: No reservation found on your name.

USER: That's ok, no problem. Thank you for your help.

ASSISTANT: Thank you for choosing us.

USER: Welcome.