You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I guide you?

USER: I need to change my reservation as my planned event got postponed so please help me with changing my reservation.

ASSISTANT: Sure, I will help you.

USER: Thank you.

ASSISTANT: Can I have your name please to check your reservation?

USER: Sure, myself Susan Turner.

ASSISTANT: Susan, no reservation has been found on your name in our database.

USER: Oh! It may not be booked properly while booking due to server issue. Anyway, thank you for your time.

ASSISTANT: Thank you for reaching us.

USER: Most welcome.