You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you today?

USER: I am Paul Edwards. I want to Change my reservation due to my sudden exams, can you help me in that?

ASSISTANT: Yes, I can help you with that. Give me a moment to check the details for you. I appreciate your patience. Paul, there is no reservation found under your name.

USER: That's ok. Thank you for your help.

ASSISTANT: Would you like to book a new flight ticket for you?

USER: No thank's.

ASSISTANT: You are welcome.