You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello.

USER: I am Paul Mitchell.

ASSISTANT: How may I assist you?

USER: Can you help me booking a flight ticket from IAD to OAK?

ASSISTANT: Sure, can you please mention you preferable travel dates?

USER: I will start on Feb, 15 and return on Feb, 17.

ASSISTANT: Please wait for a while to find the flight on your dates and locations.

USER: Sure.

ASSISTANT: I have found a direct flight 1011 in Southwest airlines, can I confirm your flight ticket booking?

USER: No. I need a break in my journey.

ASSISTANT: Sorry, there is no flight.

USER: No problem, thank you for the information.

ASSISTANT: Thank you for approaching and have a nice day.