You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I help you out?

USER: Eric Hernandez here. Can you please be my helping hand in changing my existing reservation?

ASSISTANT: Sure, we are here to help you. Can you please let me know your good name?

USER: Thank you. Already mentioned above.

ASSISTANT: Sorry, please be on hold.

USER: Sure.

ASSISTANT: Thanks for waiting, we did not find any active reservation on your name.

USER: No problem, thank you.

ASSISTANT: Thank you for choosing us.