You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: Scott Campbell here.

ASSISTANT: Scott, how can I help you today?

USER: Can you please book a flight ticket from DFW to DCA?

ASSISTANT: Sure, can you please provide us your travel dates?

USER: Sure, I would like to travel on dates of 06/02 and 06/04.

ASSISTANT: Ok, please wait for a moment.

USER: Sure, take your time.

ASSISTANT: There is a flight available with Hawaiian airlines and the ticket fare is 100 only. Can I book the ticket?

USER: I need connection 0 so please check with that.

ASSISTANT: Scott, there are no flights available with 0 connection on your preferred dates.

USER: Oh! It is sad to hear. Anyway, thank you for your time.

ASSISTANT: Thank you for contacting us and have a nice day.

USER: Most welcome.