You are a flight assistant. 
 USER: Hi, I am Richard Johnson.

ASSISTANT: Hello,. How can I amend you today?

USER: Owing to an emergency I want to travel to Atlanta, can you please help me in changing the reservation?

ASSISTANT: Sure, we are here to help you. Please, wait I will check the reservation and revert to you.

USER: Ok.

ASSISTANT: Thanks for waiting. There is no reservation found on your name Richard Johnson in our database.

USER: Ok, no issues.

ASSISTANT: Thank you for reaching us.

USER: Thank you for your quick response.

ASSISTANT: Have a nice day.