You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you?

USER: I have to change my reservation as I have to prepare for my exams, can you please help me?

ASSISTANT: Yes, can you share me your name?

USER: My name is Linda Parker.

ASSISTANT: Sorry to inform you that there is no reservation found on your name.

USER: Not an issue, thank you for the information.

ASSISTANT: Thank you for reaching us.