You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, can you please tell me how can I serve you?

USER: I'm Jack Scott.

ASSISTANT: Ok.

USER: I want to change my current reservation because my childhood friend met with an accident.

ASSISTANT: Oh! So sad. Please wait for a while. Sorry Scott, no reservation found with your name in my list.

USER: That's fine, no problem. Thank you for your help.

ASSISTANT: Thank you for reaching us.