You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello, what kind of help are you looking for?

USER: I am planning to book a ticket from IAD to DEN to attend seminar, can you help me in booking?

ASSISTANT: Sure, when are you planning to start and return on?

USER: I am departing on June 29 and return on July 01.

ASSISTANT: Do you need a flight with a connection or a direct flight?

USER: I need a flight with connection limit 0.

ASSISTANT: Can I know your good name?

USER: My name is Frank King.

ASSISTANT: Thank you for your details, we found a direct flight 1007 in economy class.

USER: Please proceed for booking.

ASSISTANT: Your ticket has been confirmed with a Delta airline.

USER: Thank you for your help.

ASSISTANT: Thank you.