You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Emily Smith.

ASSISTANT: How may I help you out?

USER: I need to change my reservation due to my planned event got postponed because of some money issues. So please help me with changing my reservation.

ASSISTANT: Sure, I will help you in changing the ticket.

USER: Thank you.

ASSISTANT: Sorry, there are no reservations found in our database.

USER: Oh! It may not be booked properly due to some technical issues.

ASSISTANT: Thank you for reaching us.

USER: Anyway, thank you for your time.