You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: Due to inconvenience of my work, I want to change my reservation. Can you please help me for that?

ASSISTANT: Sure, I am here to help you in changing the ticket details. Can I know your full name to check the ticket status?

USER: My name is Shirley Wright.

ASSISTANT: Ok, please give me a minute.

USER: Ok, I will wait.

ASSISTANT: Sorry to inform you, there is no reservation found with your name to change the ticket details.

USER: Anyway, thanks for the information.

ASSISTANT: Most welcome. Thank you for opting us.