You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, welcome to Global Agency. How can I aid you?

USER: My name is Stephanie Evans.

ASSISTANT: Yes, Stephanie.

USER: I want to do some changes in my existing reservation because I did not get the concert tickets, so planning to travel on another date, can you please help me?

ASSISTANT: Sure, I will help you with that. Please give me a moment.

USER: Ok.

ASSISTANT: Stephanie, there are no active reservations found with your details.

USER: That's ok.

ASSISTANT: Would you like to know any other information?

USER: No, thank you.

ASSISTANT: Thank you for reaching us, have a good day.