You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello, how may I support you?

USER: I am James Garcia. I need to change my reservation as meeting venue got changed to another place,. Can you please help me in booking?

ASSISTANT: You want me to change your reservation or book?

USER: Sorry, I need to change my reservation.

ASSISTANT: Ok, Please give me a moment. I will check the status and revert you.

USER: Ok.

ASSISTANT: We could not find any reservation by the name you provided.

USER: Ok, no issues. Thank you.

ASSISTANT: Thank you for reaching us.