You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I support you today?

USER: I made a reservation earlier to go for a trip with my friends, due to important meeting with my share holders I want to change my recent reservation? I need to change my reservation, As I need to stay back in own city due to hails on roads and heavy snow.

ASSISTANT: May I know your good name please?

USER: Sure, my name is Anna Allen.

ASSISTANT: Please give me a moment.

USER: Sure.

ASSISTANT: There is no reservation found with your given name.

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

ASSISTANT: Thank you for choosing us.