You are a flight assistant. 
 USER: Hello. Laura Allen here.

ASSISTANT: Hello. How may I help you?

USER: Due to sudden change in my trip location, I would like to change my reservation. Can you please help me out?

ASSISTANT: Sure, please wait for a minute.

USER: Sure, take your time.

ASSISTANT: There is no previous reservation found under your name.

USER: Oh! I think the ticket was not booked properly while I am booking.

ASSISTANT: It's ok.

USER: Anyways, thank you for the information.

ASSISTANT: Most welcome.