You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. Please let me know how can I help you.

USER: Owing to an emergency I had to request for this change reservation, Can you please help me in that?

ASSISTANT: Yes, I am here to help you with that. Could you please tell me your good name to check the ticket status?

USER: My name is Kenneth Thompson.

ASSISTANT: Ok, can you please be on hold for a while?

USER: Sure.

ASSISTANT: Sorry to inform you that, there is no reservation found with your name in our database to change.

USER: Ok, that's not a problem. Thanks for your information.

ASSISTANT: You are most welcome. Thank you for reaching us.