You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. What can I do for you today?

USER: I need to change my reservation for a client meeting but I have got a sudden call from my friend that one of my friend got met with an accident so I feel to change my reservation. Can you please help me out?

ASSISTANT: Sure, may I know your good name please?

USER: Thank you for considering my request. My name is Paul Garcia.

ASSISTANT: Ok, please wait for few minutes.

USER: Sure, I will wait.

ASSISTANT: There is no existing reservation found on your name in our records.

USER: Not a problem, anyways thank you for the information.

ASSISTANT: Thank you for reaching us.