You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: My ticket is booked with wrong destination, can you please help me in changing my existing reservation?

ASSISTANT: Sure, can you please tell your name to check your reservation details?

USER: Yes, I am Rachel Adams.

ASSISTANT: Sorry, I'm unable to find your reservation on our computer.

USER: Ok, not an issue. Thank you for your information.

ASSISTANT: Thank you and have a nice day.