You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Myself Brandon Parker.

ASSISTANT: How can I assist you?

USER: Please help me to cancel my recent booking.

ASSISTANT: Sure, i can help you with that. Please wait for a while.

USER: Sure, I will wait.

ASSISTANT: There is no active reservation found under your name to do cancellation.

USER: That's ok. Thank you.

ASSISTANT: Thank you for choosing us.