You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I help you today?

USER: As my plans to visit Houston got postponed, can you please help me in changing my existing reservation to Houston?

ASSISTANT: Sure, I am glad to help you with that.

USER: Thank you.

ASSISTANT: Can you please tell me your name?

USER: My previous reservation has done with my name Virginia Hill.

ASSISTANT: Sorry, no reservation found on your name.

USER: Ok, not an issue. Thank you for providing information.

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