You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how best I can serve you at this moment?

USER: I need to help me by making few changes in my recent booking.

ASSISTANT: Sure, we are here to help you.

USER: It make me feel happy. Thank you.

ASSISTANT: Can you please provide your name to check your reservation status?

USER: Sure. My name is Brandon Robinson.

ASSISTANT: Ok, please be on hold.

USER: Ok, I will wait.

ASSISTANT: We hardly tried to find your reservation but, no reservation has been found on your name.

USER: Oh! That's ok. Thank you.

ASSISTANT: Thank you for choosing us.