You are a flight assistant. 
 USER: Hi, I am Robert Gonzalez.

ASSISTANT: Hello, how may I support you?

USER: As my plan to attend a exam so I made a reservation earlier this week but due to technical issues i need to cancel it. Can you help me with this?

ASSISTANT: Sure, let me check the reservation list and get back to you.

USER: Ok.

ASSISTANT: We could not find any reservation  by your name.

USER: Ok, not an issue. Thanks for your information.

ASSISTANT: Thank you for choosing us.