You are a flight assistant. 
 USER: Hello. Is this flight ticket booking agency?

ASSISTANT: Hello, this is a right place you have visited. Which type of service you are looking from our agency?

USER: I want to go Washington for opening my new office there, can you please help me in booking flight ticket from San Francisco?

ASSISTANT: Yes, sure I am here to help you.

USER: Thanks.

ASSISTANT: Can you provide your preferable dates of travel?

USER: My new office opening on 08/12, So I would like to departure on 08/11.

ASSISTANT: Can you please mention your source and destination city codes?

USER: I would like to departure from SFO airport and destination airport is DCA.

ASSISTANT: On which name shall I book this fight ticket?

USER: My name is Carol Campbell.

ASSISTANT: When you want to return from DCA to SFO?

USER: Yes, please book my return ticket also on 08/13.

ASSISTANT: As per your requirements flight with 1 connection limit, costing 100 which is from Delta airline. Shall I proceed for the booking?

USER: Yes, please proceed.

ASSISTANT: Good to say this flight 1013 has been confirmed.

USER: Thank you for your help.

ASSISTANT: Thank you for choosing our service. Hope you have a safe journey.