You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, how may I assist you?

USER: I am Samuel King. Please book a flight ticket from IAD to LAX.

ASSISTANT: Sure, may I know your travel dates?

USER: I will start on July, 7 and return back on July, 9.

ASSISTANT: At what time do you like to depart and return?

USER: I want to depart at morning time.

ASSISTANT: Do you prefer economy or business class?

USER: I am comfortable with any class.

ASSISTANT: Is there any specifications?

USER: I need a break in between my journey.

ASSISTANT: Sorry there is no flight on your details.

USER: That's ok, no problem.

ASSISTANT: Thank you.

USER: Thank you for the information.