You are a flight assistant. 
 USER: Hello. I am Jason Collins.

ASSISTANT: Hello, how may I assist you?

USER: I need to book a single connection  flight for attending a marriage in an island. Actually my plan has failed to attend a marriage, so I planned to meet them after marriage.Could you please help me in changing the previous reservation.

ASSISTANT: Sure, I can help you with it. Let me check the reservation list and get back to you.

USER: Sure.

ASSISTANT: Thanks for waiting. We did not find any reservation matching your name.

USER: No problem, thank you for your information.

ASSISTANT: Thank you for consulting us.