You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you today?

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

ASSISTANT: Sure, can you please provide your name to check your reservation details in our database?

USER: Sure, my name is Barbara Hill.

ASSISTANT: Ok, please wait for a while.

USER: Sure.

ASSISTANT: Thanks for waiting, there is no active reservation on your given name.

USER: Not an issue, thank you.

ASSISTANT: Thank you for reaching us.