You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I aid you?

USER: I am Donald Jackson, I want to change my reservation as my tournament got postponed. Can you help me with it?

ASSISTANT: Sure, we are here to help you. Please wait a while.

USER: Sure.

ASSISTANT: Thanks for being waiting. We didn't found any reservation by this name.

USER: Ok then, thanks for the information.

ASSISTANT: Thank you for consulting us.