You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. How may I assist you today?

USER: Myself Karen Mitchell.

ASSISTANT: Nice meeting you Karen.

USER: I want to visit Washington next month for attending business meeting there, can you please book a flight ticket for me?

ASSISTANT: Sure, we are gleeful to help you. Can you please provide your travelling airport codes for booking?

USER: Thanks, I want to fly from SFO airport and destination airport is DCA.

ASSISTANT: Ok, may I know your preferable dates of travelling?

USER: My departure date is 11/28 and please book my return ticket also on 11/30.

ASSISTANT: Please wait a moment to check the flights availability.

USER: Sure.

ASSISTANT: According to your information, I have found a flight with 1 connection with the fare of 200 from UA airlines. Is it ok for you?

USER: I am ok with this flight, please proceed.

ASSISTANT: Ok, your seat is confirmed in flight number 1005.

USER: Thank you for assisting me.

ASSISTANT: Thank you for approaching us, have a great journey.