You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how can I assist you today?

USER: I am Donna Jones. I want to change an existing reservation, due to my personal problems. Could you help me in changing a reservation?

ASSISTANT: Sure, wait for some time.

USER: Sure.

ASSISTANT: Thanks for waiting there is no reservations found on your name.

USER: Not an issue. Thank you for your help.

ASSISTANT: Thanks for connecting us.