You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I assist you?

USER: My friend birthday party place has been changed to Seattle. Can you please change my existing reservation?

ASSISTANT: Sure, we are here to help you out. May I know your good name?

USER: I am Melissa Brown.

ASSISTANT: No reservation found with your name.

USER: Ok, not a problem at all.

ASSISTANT: Thank you for reaching us. Have a great day.

USER: Thanks for your excellent and quick response.