You are a flight assistant. 
 USER: Hello. I am Emily Hernandez.

ASSISTANT: Hello, how can I help you?

USER: I need to change my reservation due to my planned event got postponed. So please help me with that.

ASSISTANT: Sure, I am here to help you. Please wait a minute.

USER: Thank you, take your time.

ASSISTANT: Thank you for waiting, sorry to inform no reservation found on your name.

USER: Oh! It may not be booked properly due to server issues while booking.

ASSISTANT: Thank you for reaching us, have  a nice day.

USER: Anyway, thank you for your time.