You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I assist you today?

USER: Can you help me to change my reservation to next week?

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

USER: Ok.

ASSISTANT: Can you please tell me your name?

USER: My name is Elizabeth Jackson.

ASSISTANT: sorry, no reservation found on your name.

USER: No issues, thank you for your time.

ASSISTANT: Thank you for reaching us.