src/main/java/com/passkit/grpc/Flights/PassengerOuterClass.java
public Builder clearAirlineDesignator() {
        
        airlineDesignator_ = getDefaultInstance().getAirlineDesignator();
        onChanged();
        return this;
      }
/**
       * <pre>
       * The airline designator of the traveler's frequent flyer program.
       * </pre>
       *
       * <code>string airlineDesignator = 2;</code>
       * @return This builder for chaining.
       */

The airline designator of the traveler's frequent flyer program.

string airlineDesignator = 2;
@return This builder for chaining.
The airline designator of the traveler ' s frequent flyer program . string airlineDesignator = 2 ; @return This builder for chaining .
public Builder clearAirlineDesignator() {
        airlineDesignator_ = getDefaultInstance().getAirlineDesignator();
        onChanged();
        return this;
      }
public Builder clearAirlineDesignator ( ) { airlineDesignator_ = getDefaultInstance ( ) . getAirlineDesignator ( ) ; onChanged ( ) ; return this ; }
<pre>
 The airline designator of the traveler's frequent flyer program.
<pre > The airline designator of the traveler ' s frequent flyer program .