Why is Dolores going to Washington DC?

M: Transcontinental Airlines. May I help you?
W: I’d like to make a reservation on a flight to Washington, DC on the morning of March 10th. I’m going to a five-day conference there.
M: There’s a flight at 8: 30 and one at 11:00.
W: The 11: 00 one would be better.
M: And when will you be returning?
W: On March 15th. I’d like an afternoon flight, if possible.
M: There’s a flight at 3:15.
W: That’ll be fine.
M: Your name, please?
W: Dolores Andersson. That’s D-o-l-o-r-e-s and Andersson with two s’s.
M: Thank you. You have a confirmed reservation for March 10th on Transcontinental flight number 241 leaving Chicago at 11:00 am and arriving in Washington at 1: 55 pm. You are also confirmed on return flight number 242 leaving Washington on March 15th at 3: 15 pm and arriving in Chicago at 6: 10 pm. The round trip fare will be $326. How would you like to pay for your tickets, Ms Andersson?
W: By American Express.
M: Fine. May I have your card number?
W: It’s 6710 - 121740 -72409.
M: Would you like to pick up your tickets at the airport or would you like us to mail them to you?
W: Mail them, please.