You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How may I help you?

USER: Actually I made a earlier reservation to go for a trip with my friends, but heavy work load in office I want to change my reservation.

ASSISTANT: Sure, can you share your name?

USER: Matthew Turner is my name.

ASSISTANT: Sorry, there is no reservation found under you name.

USER: That's ok, thank you for checking.

ASSISTANT: Thank you for reaching us.