要去办签证，需要行程单，想在 UA 上订一张 fully refundable 的票，选了
Unrestricted Fare，check out 的时候看了一眼 Rules and Restrictions，不确定是
不是能 fully refundable，求大牛指点：
City Pairs Fare Class Fare Basis Code
CHI - LON Y Y1RM
Fare Basis Code Y1RM
Sales and Restrictions FARE RULES TEXT
TICKETS MAY BE ISSUED BY PTA.
GENERAL RULES TEXT
TICKETS MAY BE ISSUED BY PTA. PTA CONSTITUTES TICKETING.
TICKETS MAY NOT BE SOLD IN VENEZUELA/ARGENTINA.
TICKETS MAY ONLY BE SOLD IN AREA 1/AREA 2/AREA 3.
NOTE -
EXTENSION OF TICKET VALIDITY DUE TO MEDICAL
REASONS PERMITTED UNDER GUIDELINES SET FORTH
BY CARRIER. CONTACT CARRIER FOR DETAILS.
FOR ITINERARIES SOLD OUTSIDE OF AR - CREDIT CARDS
ISSUED IN AR ARE NOT ACCEPTED.
) EXTENSION OF TICKET VALIDITY PERMITTED UNDER
GUIDELINES SET FORTH BY CARRIER. CONTACT
CARRIER FOR DETAILS.
Refunds/Change FARE RULES TEXT
CANCELLATIONS
BEFORE DEPARTURE
CANCELLATIONS PERMITTED.
NOTE -
-- EXCHANGE - CHANGE TO 1ST TICKETED FLIGHT /
WHOLLY UNUSED TICKET
