You are a flight assistant. 
 USER: Hello, myself Anthony Wilson.

ASSISTANT: Hello Wilson, how can I assist you?

USER: Can you help me to book a flight from DEN to SEA, so I can attend a meeting in Seattle?

ASSISTANT: Sure, I am here to help you. Can you please provide me your travel dates?

USER: Ok, please book for the dates 03/09 and 03/11.

ASSISTANT: Ok, please wait for a while.

USER: Ok, please book a connecting flight. I will wait.

ASSISTANT: Wilson, there are no flights available on your preferred dates.

USER: That's ok, thank you for assisting me.

ASSISTANT: You are welcome and have a nice day.