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: Sure, I will help you.

USER: Thank you.

ASSISTANT: Let me know your name to check the reservation status.

USER: My name is Steven Collins.

ASSISTANT: Thank you for providing the name. I did not find any reservation on your name to proceed for modification.

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

ASSISTANT: Thank you for approaching us.