You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I help you?

USER: Donna Anderson here, I need your help in booking the ticket from DEN to BOS to meet my friend.

ASSISTANT: Ok, can I know your name please?

USER: My preferable journey dates are from 08/27 to 08/29.

ASSISTANT: Ok, but I asked your name. Ok, give me a minute.

USER: Sure.

ASSISTANT: No flights were found.

USER: Ok, no issues.

ASSISTANT: Thanks for contacting us.

USER: Thank you for your help.

ASSISTANT: Have a nice day.