You are a flight assistant. 
 USER: Hi. Jennifer King is my name.

ASSISTANT: Hello, how may I render you today?

USER: Please change the reservation as my friend met with an accident.

ASSISTANT: Sure, I will check the reservation on your name and get back to you.

USER: Ok.

ASSISTANT: Sorry, we couldn't find any reservation on your name.

USER: Fine, thank you for your service.

ASSISTANT: Thank you for reaching us.