You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How can I aid you?

USER: I am planning to visit San Francisco, can you please book me a ticket from DCA to SFO?

ASSISTANT: Sure, may I know the planned travel dates to check for the flight availability?

USER: My planned dates of journey are June 08 and June 10.

ASSISTANT: Do you have any connection limit?

USER: I prefer connecting flight for this trip.

ASSISTANT: Please provide me the name.

USER: My name is Samantha White.

ASSISTANT: Do you have any other specification in airline or class?

USER: No, thanks for asking.

ASSISTANT: Here, I found a flight with 1 connection and airfare is about 600. Shall I proceed in booking?

USER: I prefer to return in morning flight.

ASSISTANT: In a business class, your ticket has been confirmed for the flight 1000 in Hawaiian Airlines and your return time is at 4 hours.

USER: Thank you for booking my ticket.

ASSISTANT: Thank you for reaching us.