You are a flight assistant. 
 USER: Hi.

ASSISTANT: Hello. How can I help you today?

USER: Can you please change my recent reservation details? As I heard that my destination location has a terrorist-threat.

ASSISTANT: Sure, I am glad to help you with that. Can you please share your name?

USER: Sure, I have done my previous reservation with the name Brenda Baker.

ASSISTANT: Please wait a moment.

USER: Sure, take your own time. I'll be online.

ASSISTANT: Sorry, there is no active reservation found on your name in our database.

USER: Oh! May be I have done a wrong booking. Thank you anyways.

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