You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how can I help you?

USER: I need to amend my reservation due to some issues, can you help me in modifying my reservation?

ASSISTANT: Sure, I can help you with that. May I know your good name please?

USER: Thank you for considering my concern and please check my reservation status on Benjamin Smith.

ASSISTANT: Ok, please wait for a while. Benjamin Smith, there is no active reservation found under your name to do changes in that.

USER: That's ok, not an issue. Thank you for your help.

ASSISTANT: Thank you for choosing us.