You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I help you?

USER: I would like to change my reservation as I am leaving to hometown, can you please help me out?

ASSISTANT: Sure, I am happy to help you with that. Can I know your name to check the ticket status? Ok, please give me a minute.

USER: Lisa Martin here. Sure.

ASSISTANT: Sorry to inform you that, there is no reservation found with your name to change the ticket details.

USER: Ok no problem, thank you for your services.

ASSISTANT: You are welcome. Thank you for choosing us.