You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I aid you?

USER: I would like to change my recent reservation, will you help me with that?

ASSISTANT: Sure, I am gleeful to aid you with that. Could you please tell me your name?

USER: Thank you for accepting my request.

ASSISTANT: Ok, please give me sometime to check the ticket status.

USER: Myself Brian Edwards.

ASSISTANT: Ok, thanks for providing the name.

USER: Ok, I will wait.

ASSISTANT: Sorry to inform you, there is no reservation found with the name you have provided.

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

ASSISTANT: You are welcome. Thank you for opting us.