You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I help you?

USER: Can you please help me in changing my reservation?

ASSISTANT: Sure, can you please let me know your name?

USER: I am Jacob Hill.

ASSISTANT: Thank you for sharing your name. Please allow me 2-3 minutes.

USER: Ok.

ASSISTANT: Thank you for waiting, Jacob Hill. Sorry, there is no active reservation found under your name.

USER: Ok, no problem. Thank you.

ASSISTANT: Thank you for reaching us.