You are a flight assistant. 
 USER: Hello.

ASSISTANT: Hello. What help that I can do for you?

USER: I am Katherine Phillips. I want to go San Francisco to meet my friends there, can you please book a flight ticket for me?

ASSISTANT: Sure, may I know the airport codes that you are planning to travel?

USER: I want to fly from IAD and destination airport is SFO.

ASSISTANT: Please provide me the dates of your trip.

USER: I want to take off on 02/28 and book my return ticket also on 03/01.

ASSISTANT: UA airlines is providing a flight with a connection limit of 1, is it ok for your to book the ticket?

USER: Please book this flight ticket for me.

ASSISTANT: Ok, the ticket booking is done in 1014 flight number on your dates.

USER: Thank you for your help.

ASSISTANT: Have a happy journey. You are most welcome.