You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello,good morning. What can I do for you?

USER: Good Morning, Ronald Roberts here. I have an urgent meeting at Oakland so I need a direct flight, can you search for a direct flight for me?

ASSISTANT: Sure, I will help you with that.

USER: Thank you.

ASSISTANT: Firstly may I know your travel details?

USER: Sure, I will fly from DEN to OAK.

ASSISTANT: Ok, Your approx travel dates please?

USER: I have to go on 06/04 and return on 06/06.

ASSISTANT: 1027 - flight is matching you with all your requirements, can I reserve a seat for you?

USER: Ok, book it for me.

ASSISTANT: Your seat is confirmed with Hawaiian airlines , it cost you 200 only.

USER: Thank you so much for helping me out.

ASSISTANT: Thank you for contacting us, have a happy journey.

USER: Welcome.