You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I guide you for today?

USER: I am Richard Baker. I want to change my ticket reservation that when I am booking a ticket it show with a two connecting flight but now it got emergency and I need a connecting flight to travel, so can you please help me in changing my recent ticket booking?

ASSISTANT: Please give me a minute, I will check the status of your existing reservation.

USER: Sure, take your own time.

ASSISTANT: Sorry, there is no reservation found under your name.

USER: That's fine.

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

USER: Thank you for your help.